SOLARWINDS, INC. Shares of Common Stock Underwriting Agreement

Exhibit 1.1

SOLARWINDS, INC.

Shares of Common Stock

Underwriting Agreement

May 19, 2009

X.X. Xxxxxx Securities Inc.

Xxxxxxx, Sachs & Co.

Xxxxxx Xxxxxxx & Co. Incorporated

As Representatives of the

several Underwriters listed

in Schedule 1 hereto

c/o X.X. Xxxxxx Securities Inc.

000 Xxxx Xxxxxx

Xxx Xxxx, XX 00000

Ladies and Gentlemen:

SolarWinds, Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several Underwriters listed in Schedule 1 hereto (the “Underwriters”), for whom you are acting as representatives (the “Representatives”), an aggregate of shares of Common Stock, par value $0.001 per share (“Common Stock”), of the Company, and certain stockholders of the Company named in Schedule 2 hereto (the “Selling Stockholders”) propose severally and not jointly to sell to the several Underwriters an aggregate of shares of Common Stock of the Company (collectively, the “Underwritten Shares”). In addition, the Selling Stockholders propose to issue and sell, at the option of the Underwriters, up to an additional shares of Common Stock of the Company (the “Option Shares”). The Underwritten Shares and the Option Shares are herein referred to as the “Shares”. The shares of Common Stock of the Company to be outstanding after giving effect to the sale of the Shares are herein referred to as the “Stock”.

1. Registration Statement. The Company has prepared and filed with the Securities and Exchange Commission (the “Commission”) under the Securities Act of 1933, as amended, and the rules and regulations of the Commission thereunder (collectively, the “Securities Act”), a registration statement on Form S-1 (File No. 333-149851) including a prospectus, relating to the Shares. Such registration statement, as amended at the time it becomes effective, including the information, if any, deemed pursuant to Rule 430A, 430B or 430C under the Securities Act to be part of the registration statement at the time of its effectiveness (“Rule 430 Information”), is referred to herein as the “Registration Statement”; and as used herein, the term “Preliminary Prospectus” means each prospectus included in such registration statement (and any amendments thereto) before it becomes effective, any prospectus filed with the Commission pursuant to Rule 424(a) under the Securities Act and the prospectus included in the Registration Statement at the time of its effectiveness that omits Rule 430 Information, and the term “Prospectus” means the prospectus in the form first used (or made available upon request of purchasers pursuant to Rule 173 under the Securities Act) in connection with confirmation of sales of the Shares. If the Company has filed an

abbreviated registration statement pursuant to Rule 462(b) under the Securities Act (the “Rule 462 Registration Statement”), then any reference herein to the term “Registration Statement” shall be deemed to include such Rule 462 Registration Statement. Capitalized terms used but not defined herein shall have the meanings given to such terms in the Registration Statement and the Prospectus.

At or prior to the time when sales of the Shares were first made hereunder (the “Time of Sale”), the Company had prepared the following information (collectively [with the pricing information set forth on Annex B][delete bracketed language unless pricing information is provided orally], the “Time of Sale Information”): a Preliminary Prospectus dated May 1, 2009, and each “free-writing prospectus” (as defined pursuant to Rule 405 under the Securities Act) listed on Annex B hereto.

2. Purchase of the Shares by the Underwriters. (a) The Company agrees to issue and sell, and each of the Selling Stockholders agrees, severally and not jointly, to sell, on the basis of the representations, warranties and agreements set forth herein and subject to the conditions set forth herein, the Underwritten Shares to the several Underwriters as provided in this Agreement, and each Underwriter, on the basis of the representations, warranties and agreements set forth herein and subject to the conditions set forth herein, agrees, severally and not jointly, to purchase from the Company and each of the Selling Stockholders at a price per share of $ (the “Purchase Price”) the number of Underwritten Shares (to be adjusted by you so as to eliminate fractional shares) determined by multiplying the aggregate number of Underwritten Shares to be sold by the Company and each of the Selling Stockholders as set forth opposite their respective names in Schedule 2 hereto by a fraction, the numerator of which is the aggregate number of Underwritten Shares to be purchased by such Underwriter as set forth opposite the name of such Underwriter in Schedule 1 hereto and the denominator of which is the aggregate number of Underwritten Shares to be purchased by all the Underwriters from the Company and all of the Selling Stockholders hereunder.

In addition, each of the Selling Stockholders agrees severally and not jointly, and to the extent indicated in Schedule 2 hereto, to sell, on the basis of the representations, warranties and agreements set forth herein and subject to the conditions set forth herein, the Option Shares to the several Underwriters as provided in this Agreement, and the Underwriters, on the basis of the representations, warranties and agreements set forth herein and subject to the conditions set forth herein, shall have the option to purchase, severally and not jointly, from each Selling Stockholder at the Purchase Price, less an amount per share equal to any dividends or distributions declared by the Company and payable on the Underwritten Shares but not payable on the Option Shares, that portion of the number of Option Shares as to which such election shall have been exercised (to be adjusted by you in your sole discretion so as to eliminate fractional Shares) determined by multiplying such number of Option Shares by a fraction the numerator of which is the maximum number of Option Shares which such Underwriter is entitled to purchase set forth opposite such Underwriter’s name in Schedule 1 hereto and the denominator of which is the maximum number of Option Shares which all of the Underwriters are entitled to purchase hereunder. Any such election to purchase Option Shares shall be made in proportion to the maximum number of Option Shares to be sold by each Selling Stockholder as set forth in Schedule 2 hereto.

The Underwriters may exercise the option to purchase the Option Shares at any time in whole, or from time to time in part, on or before the thirtieth day following the date of this Agreement, by written notice from the Representatives to the Attorneys in Fact (as defined below). Such notice shall set forth the aggregate number of Option Shares as to which the option is being exercised and the date and time when the Option Shares are to be delivered and paid for, which may be the same date and time as the Closing Date (as hereinafter defined) but shall not be earlier than the Closing Date nor later than the tenth full business day (as hereinafter defined) after the date of such notice (unless such time and date are postponed in accordance with the provisions of Section 12 hereof). Any such notice shall be given at least two business days prior to the date and time of delivery specified therein.

(b) The Company and the Selling Stockholders understand that the Underwriters intend to make a public offering of the Shares as soon after the effectiveness of this Agreement as in the judgment of the Representatives is advisable, and initially to offer the Shares on the terms set forth in the Prospectus. The Company and the Selling Stockholders acknowledge and agree that the Underwriters may offer and sell Shares to or through any affiliate of an Underwriter and that any such affiliate may offer and sell Shares purchased by it to or through any Underwriter.

(c) Payment for the Shares shall be made by wire transfer in immediately available funds to the respective accounts specified by the Company, and the Attorneys-in-Fact or any of them (with regard to payment to the Selling Stockholders), to the Representatives in the case of the Underwritten Shares, at the offices of Xxxxxx Xxxxxxx Xxxxxxxx & Xxxxxx, Professional Corporation, 900 South Capital of Texas Highway, Las Cimas IV, Fifth Floor, Austin, Texas, at 10:00 A.M. New York City time on May 26, 2009, or at such other time or place on the same or such other date, not later than the fifth business day thereafter, as the Representatives, the Company and the Attorneys-in-Fact may agree upon in writing or, in the case of the Option Shares, on the date and at the time and place specified by the Representatives in the written notice of the Underwriters’ election to purchase such Option Shares. The time and date of such payment for the Underwritten Shares is referred to herein as the “Closing Date” and the time and date for such payment for the Option Shares, if other than the Closing Date, is herein referred to as the “Additional Closing Date”.

Payment for the Shares to be purchased on the Closing Date or the Additional Closing Date, as the case may be, shall be made against delivery to the Representatives for the respective accounts of the several Underwriters of the Shares to be purchased on such date or the Additional Closing Date, as the case may be, with any transfer taxes payable in connection with the sale of such Shares duly paid by the Company and the Selling Stockholders, as applicable. Delivery of the Shares shall be made through the facilities of The Depository Trust Company unless the Representatives shall otherwise instruct. The certificates for the Shares will be made available for inspection and packaging by the Representatives at the office of X.X. Xxxxxx Securities Inc. set forth above not later than 1:00 P.M., New York City time, on the business day prior to the Closing Date or the Additional Closing Date, as the case may be.

(d) Each of the Company and each Selling Stockholder acknowledges and agrees that the Underwriters are acting solely in the capacity of an arm’s length contractual counterparty to the Company and the Selling Stockholders with respect to the offering of Shares contemplated hereby (including in connection with determining the terms of the offering) and not as a financial advisor or a fiduciary to, or an agent of, the Company, the Selling Stockholders or any other person.

Additionally, neither the Representatives nor any other Underwriter is advising the Company, the Selling Stockholders or any other person as to any legal, tax, investment, accounting or regulatory matters in any jurisdiction. The Company and the Selling Stockholders shall consult with their own advisors concerning such matters and each shall be responsible for making its own independent investigation and appraisal of the transactions contemplated hereby, and the Underwriters shall have no responsibility or liability to the Company or the Selling Stockholders with respect thereto. Any review by the Underwriters of the Company, the transactions contemplated hereby or other matters relating to such transactions will be performed solely for the benefit of the Underwriters and shall not be on behalf of the Company or the Selling Stockholders.

3. Representations and Warranties of the Company. The Company represents and warrants to each Underwriter and the Selling Stockholders that:

(a) Preliminary Prospectus. No order preventing or suspending the use of any Preliminary Prospectus has been issued by the Commission, and each Preliminary Prospectus included in the Time of Sale Information, at the time of filing thereof, complied in all material respects with the Securities Act, and did not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation and warranty with respect to any statements or omissions made in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in any Preliminary Prospectus, it being understood and agreed that the only such information furnished by any Underwriter consists of the information described as such in Section 9(c) hereof.

(b) Time of Sale Information. The Time of Sale Information, at the Time of Sale, did not, and at the Closing Date and as of the Additional Closing Date, as the case may be, will not, contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation and warranty with respect to any statements or omissions made in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in such Time of Sale Information, it being understood and agreed that the only such information furnished by any Underwriter consists of the information described as such in Section 9(c) hereof. No statement of material fact included in the Prospectus has been omitted from the Time of Sale Information and no statement of material fact included in the Time of Sale Information that is required to be included in the Prospectus has been omitted therefrom.

(c) Issuer Free Writing Prospectus. Other than the Registration Statement, the Preliminary Prospectus and the Prospectus, the Company (including its agents and representatives, other than the Underwriters in their capacity as such) has not made, used, prepared, authorized, approved or referred to and will not prepare, make, use, authorize, approve or refer to any “written communication” (as defined in Rule 405 under the Securities Act) that constitutes an offer to sell or solicitation of an offer to buy the Shares (each such communication by the Company or its agents and representatives (other than a communication referred to in clause (i) below) an “Issuer Free Writing Prospectus”) other than (i) any document not constituting a prospectus pursuant to

Section 2(a)(10)(a) of the Securities Act or Rule 134 under the Securities Act or (ii) the documents listed on Annex B hereto, each electronic road show and any other written communications approved in writing in advance by the Representatives. Each such Issuer Free Writing Prospectus complied in all material respects with the Securities Act, has been or will be (within the time period specified in Rule 433) filed in accordance with the Securities Act (to the extent required thereby) and, when taken together with the Preliminary Prospectus accompanying, or delivered prior to delivery of, such Issuer Free Writing Prospectus, did not, and at the Closing Date and as of the Additional Closing Date, as the case may be, will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation and warranty with respect to any statements or omissions made in each such Issuer Free Writing Prospectus in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in such Issuer Free Writing Prospectus, it being understood and agreed that the only such information furnished by any Underwriter consists of the information described as such in Section 9(c) hereof. Each such Issuer Free Writing Prospectus, as of its issue date and at all subsequent times through the completion of the public offer and sale of the Shares or until any earlier date that the Company notified or notifies the Representatives as described in Section 5(e), did not, does not and will not include any information that conflicted, conflicts or will conflict with the information contained in the Registration Statement or the Prospectus, including any Preliminary Prospectus deemed to be a part thereof that has not been superseded or modified.

(d) Registration Statement and Prospectus. The Registration Statement has been declared effective by the Commission. No order suspending the effectiveness of the Registration Statement has been issued by the Commission and no proceeding for that purpose or pursuant to Section 8A of the Securities Act against the Company or related to the offering has been initiated or, to the Company’s knowledge, threatened by the Commission; as of the applicable effective date of the Registration Statement and any post-effective amendment thereto, the Registration Statement complied and will comply in all material respects with the Securities Act, and did not and will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein not misleading; and as of the date of the Prospectus and any amendment or supplement thereto and as of the Closing Date and as of the Additional Closing Date, as the case may be, the Prospectus does not and will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation and warranty with respect to any statements or omissions made in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in the Registration Statement and the Prospectus and any amendment or supplement thereto, it being understood and agreed that the only such information furnished by any Underwriter consists of the information described as such in Section 9(c) hereof.

(e) Financial Statements. The financial statements and the related notes thereto of the Company and its consolidated subsidiaries included in the Registration Statement, the Time of Sale Information and the Prospectus comply in all material respects with the applicable requirements of the Securities Act and the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission thereunder (collectively, the “Exchange Act”), as applicable, and

present fairly the financial position of the Company and its consolidated subsidiaries as of the dates indicated and the results of their operations and the changes in their cash flows for the periods specified; such financial statements have been prepared in conformity with U.S. generally accepted accounting principles applied on a consistent basis throughout the periods covered thereby, and the supporting schedules included in the Registration Statement present fairly the information required to be stated therein; the other financial information included in the Registration Statement, the Time of Sale Information and the Prospectus has been derived from the accounting records of the Company and its consolidated subsidiaries and presents fairly the information shown thereby; and the pro forma financial information and the related notes thereto included in the Registration Statement, the Time of Sale Information and the Prospectus have been prepared in accordance with the applicable requirements of the Securities Act and the Exchange Act, as applicable, and the assumptions underlying such pro forma financial information are reasonable and are set forth in the Registration Statement, the Time of Sale Information and the Prospectus.

(f) No Material Adverse Change. Since the date of the most recent financial statements of the Company included in the Registration Statement, the Time of Sale Information and the Prospectus, (i) there has not been any change in the capital stock (other than grants or exercises of stock options, warrants or other securities in the ordinary course under stock plans described in the Registration Statement, the Time of Sale Information and the Prospectus), long-term debt, notes payable or current portion of long-term debt of the Company or any of its subsidiaries, or any dividend or distribution of any kind declared, set aside for payment, paid or made by the Company on any class of capital stock, or any material adverse change, or any development involving a prospective material adverse change, in or affecting the business, properties, management, financial position, stockholders’ equity or results of operations of the Company and its subsidiaries taken as a whole; (ii) neither the Company nor any of its subsidiaries has entered into any transaction or agreement that is material to the Company and its subsidiaries taken as a whole or incurred any liability or obligation, direct or contingent, that is material to the Company and its subsidiaries taken as a whole; and (iii) neither the Company nor any of its subsidiaries has sustained any material loss or interference with its business from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor disturbance or dispute or any action, order or decree of any court or arbitrator or governmental or regulatory authority, except in each case as otherwise disclosed in the Registration Statement, the Time of Sale Information and the Prospectus.

(g) Organization and Good Standing. The Company and each of its subsidiaries have been duly organized and are validly existing and in good standing under the laws of their respective jurisdictions of organization, are duly qualified to do business and are in good standing in each jurisdiction in which their respective ownership or lease of property or the conduct of their respective businesses requires such qualification, and have all power and authority necessary to own or hold their respective properties and to conduct the businesses in which they are engaged, except where the failure to be so qualified or in good standing or have such power or authority would not, individually or in the aggregate, have a material adverse effect on the business, properties, management, financial position, stockholders’ equity or results of operations of the Company and its subsidiaries taken as a whole (a “Material Adverse Effect”). The Company does not own or control, directly or indirectly, any corporation, association or other entity other than the subsidiaries listed in Exhibit 21 to the Registration Statement and SolarWinds Canada Corporation and SolarWinds Cyprus Limited. SolarWinds Canada Corporation no longer leases any significant assets and has only two employees. SolarWinds Cyprus Limited has no property, operations or employees.

The subsidiaries listed in Schedule 3 to this Agreement are the only significant subsidiaries of the Company.

(h) Capitalization. The Company has an authorized capitalization as set forth in the Registration Statement, the Time of Sale Information and the Prospectus under the heading “Capitalization”; all the outstanding shares of capital stock of the Company (including the Shares to be sold by the Selling Stockholders) have been duly and validly authorized and issued and are fully paid and non-assessable and are not subject to any pre-emptive or similar rights; except as described in or expressly contemplated by the Time of Sale Information and the Prospectus, there are no outstanding rights (including, without limitation, pre-emptive rights), warrants or options to acquire, or instruments convertible into or exchangeable for, any shares of capital stock or other equity interest in the Company or any of its subsidiaries, or any contract, commitment, agreement, understanding or arrangement of any kind relating to the issuance of any capital stock of the Company or any such subsidiary, any such convertible or exchangeable securities or any such rights, warrants or options; the capital stock of the Company conforms in all material respects to the description thereof contained in the Registration Statement, the Time of Sale Information and the Prospectus; and all the outstanding shares of capital stock or other equity interests of each subsidiary owned, directly or indirectly, by the Company have been duly and validly authorized and issued, are fully paid and non-assessable and are owned directly or indirectly by the Company, free and clear of any lien, charge, encumbrance, security interest, restriction on voting or transfer or any other claim of any third party.

(i) Stock Options. With respect to the stock options (the “Stock Options”) granted pursuant to the stock-based compensation plans of the Company and its subsidiaries (the “Company Stock Plans”), (i) each Stock Option intended to qualify as an “incentive stock option” under Section 422 of the Code so qualifies, (ii) each grant of a Stock Option was duly authorized no later than the date on which the grant of such Stock Option was by its terms to be effective (the “Grant Date”) by all necessary corporate action, including, as applicable, approval by the board of directors of the Company (or a duly constituted and authorized committee thereof) and any required stockholder approval by the necessary number of votes or written consents, and the award agreement governing such grant (if any) was duly executed and delivered by each party thereto, (iii) each such grant was made in accordance with the terms of the Company Stock Plans and all other applicable laws and regulatory rules or requirements, (iv) the per share exercise price of each Stock Option was equal to the fair market value of a share of Common Stock on the applicable Grant Date as determined by the Company’s Board of Directors and (v) each such grant was properly accounted for in accordance with GAAP in the financial statements (including the related notes) of the Company.

(j) Due Authorization. The Company has full right, power and authority to execute and deliver this Agreement and to perform its obligations hereunder; and all action required to be taken for the due and proper authorization, execution and delivery by it of this Agreement and the consummation by it of the transactions contemplated hereby or by the Time of Sale Information and the Prospectus has been duly and validly taken.

(k) Underwriting Agreement. This Agreement has been duly authorized, executed and delivered by the Company.

(l) The Shares. The Shares to be issued and sold by the Company hereunder have been duly authorized by the Company and, when issued and delivered and paid for as provided herein, will be duly and validly issued and will be fully paid and non-assessable and will conform in all material respects to the descriptions thereof in the Registration Statement, the Time of Sale Information and the Prospectus; and the issuance of the Shares is not subject to any preemptive or similar rights.

(m) No Violation or Default. Neither the Company nor any of its subsidiaries is (i) in violation of its charter or by-laws or similar organizational documents; (ii) in default, and no event has occurred that, with notice or lapse of time or both, would constitute such a default, in the due performance or observance of any term, covenant or condition contained in any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or to which any of the property or assets of the Company or any of its subsidiaries is subject; or (iii) in violation of any law or statute or any judgment, order, rule or regulation of any court or arbitrator or governmental or regulatory authority, except, in the case of clauses (ii) and (iii) above, for any such default or violation that would not, individually or in the aggregate, have a Material Adverse Effect.

(n) No Conflicts. The execution, delivery and performance by the Company of this Agreement, the issuance and sale of the Shares by the Company, the issuance by the Company of the Shares to be issued upon the exercise of the Options (as defined below), the consummation by the Company of the transactions contemplated by this Agreement or the Time of Sale Information and the Prospectus and the use of the proceeds from such transactions to repay long-term debt and make earnout payments to the founders as described in the “Use of Proceeds” section of the Registration Statement, the Time of Sale Information and the Prospectus will not (i) conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, or result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of the Company or any of its subsidiaries pursuant to, any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or to which any of the property or assets of the Company or any of its subsidiaries is subject, (ii) result in any violation of the provisions of the charter or by-laws or similar organizational documents of the Company or any of its subsidiaries or (iii) result in the violation of any law or statute or any judgment, order, rule or regulation of any court or arbitrator or governmental or regulatory authority.

(o) No Consents Required. No consent, approval, authorization, order, registration or qualification of or with any court or arbitrator or governmental or regulatory authority is required for the execution, delivery and performance by the Company of this Agreement, the issuance and sale of the Shares and the consummation of the transactions contemplated by this Agreement or the Time of Sale Information and the Prospectus, except for (i) the registration of the Shares under the Securities Act, (ii) such consents, approvals, authorizations, orders and registrations or qualifications as may be required under applicable state securities laws in connection with the purchase and distribution of the Shares by the Underwriters, (iii) those required by the rules and

regulations of the Financial Industry Regulatory Authority (“FINRA”) or the New York Stock Exchange (the “NYSE”) or (iv) those that have already been obtained.

(p) Legal Proceedings. Except as described in the Registration Statement, the Time of Sale Information and the Prospectus, there are no legal, governmental or regulatory investigations, actions, suits or proceedings pending to which the Company or any of its subsidiaries is a party or to which any property of the Company or any of its subsidiaries is the subject that, individually or in the aggregate, if determined adversely to the Company or any of its subsidiaries, could reasonably be expected to have a Material Adverse Effect; to the Company’s knowledge, no such investigations, actions, suits or proceedings are threatened or contemplated by any governmental or regulatory authority or threatened by others; and (i) there are no current or pending legal, governmental or regulatory actions, suits or proceedings that are required under the Securities Act to be described in the Registration Statement or the Prospectus that are not so described in the Registration Statement, the Time of Sale Information and the Prospectus and (ii) there are no statutes, regulations or contracts or other documents that are required under the Securities Act to be filed as exhibits to the Registration Statement or described in the Registration Statement, the Time of Sale Information or the Prospectus that are not so filed as exhibits to the Registration Statement or described in the Registration Statement, the Time of Sale Information and the Prospectus.

(q) Independent Accountants. PricewaterhouseCoopers LLP, who have certified certain financial statements of the Company and its subsidiaries and financial statements of ipMonitor Corporation and Neon Systems, Inc., is an independent registered public accounting firm with respect to the Company and its subsidiaries and these other companies within the applicable rules and regulations adopted by the Commission and the Public Company Accounting Oversight Board (United States) and as required by the Securities Act.

(r) Title to Real and Personal Property. The Company and its subsidiaries have good and marketable title in fee simple to, or have valid rights to lease or otherwise use, all items of real and personal property that are material to the respective businesses of the Company and its subsidiaries, in each case free and clear of all liens, encumbrances, claims and defects and imperfections of title except those that (i) do not materially interfere with the use made and proposed to be made of such property by the Company and its subsidiaries or (ii) could not reasonably be expected, individually or in the aggregate, to have a Material Adverse Effect.

(s) Title to Intellectual Property.

(A) Except as disclosed in the Registration Statement, Time of Sale Information and the Prospectus: (i) the Company and its subsidiaries own or possess or can obtain on reasonable terms adequate rights to use all uniform resource locators (URLs), patents, patent applications, trademarks (both registered and unregistered), service marks, trade names, trademark registrations, trademark applications, service xxxx registrations, service xxxx applications, domain names, copyrights (both registered and unregistered), copyright applications, licenses, inventions and know-how (including trade secrets and other unpatented and/or unpatentable proprietary or confidential information, systems or procedures), software and other intellectual property rights (collectively, “Intellectual Property”) material for the conduct of their respective businesses as they are currently conducted or proposed to be conducted, as described in the Registration Statement, the Time of Sale Information and the Prospectus;

(B) The representations and warranties in this Section 3(s)(B) apply solely with respect to Intellectual Property that is material for the conduct of the respective businesses of the Company and its subsidiaries as they are currently conducted or proposed to be conducted, as described in the Registration Statement, the Time of Sale Information and the Prospectus, and none of the representations and warranties in this Section 3(s)(B) shall apply with respect to inbound licenses to “off the shelf” or “click through” software that is licensed to the Company or any of its subsidiaries on a non-exclusive basis. Except as disclosed in the Registration Statement, the Time of Sale Information and the Prospectus: (i) to the Company’s knowledge, there are no third parties who have established, or at the time of the Time of Sale Information will be able to establish, ownership rights to any Intellectual Property owned by the Company or its subsidiaries, except for, and to the extent of, the ownership rights of the owners of the Intellectual Property that the Registration Statement, the Time of Sale Information and the Prospectus disclose is licensed to the Company; (ii) to the Company’s knowledge, there is no infringement, misappropriation or violation by third parties of any Intellectual Property owned by the Company or its subsidiaries; (iii) there is no pending or, to the Company’s knowledge, threatened action, suit or proceeding by others challenging the Company’s or its subsidiaries’ rights in or to any such Intellectual Property, and neither the Company nor any of its subsidiaries is aware of any facts that, to the Company’s knowledge, could form a reasonable basis for any such action, suit or proceeding; (iv) (A) the Intellectual Property owned by the Company and its subsidiaries and, to the knowledge of the Company, the Intellectual Property licensed to the Company and its subsidiaries has not been adjudged invalid or unenforceable by a court of competent jurisdiction or applicable government agency, in whole or in part, (B) with respect to Intellectual Property owned by the Company or its subsidiaries, there is no pending or, to the Company’s knowledge, threatened action, suit or proceeding by others challenging the validity, enforceability or scope of any Intellectual Property, (C) with respect to Intellectual Property licensed to the Company or its subsidiaries, to the Company’s knowledge there is no pending or threatened action, suit or proceeding by others challenging the validity, enforceability or scope of any such Intellectual Property, and (D) neither the Company nor any of its subsidiaries is aware of any facts that, to the Company’s knowledge, could form a reasonable basis for any such action, suit or proceeding; (v) there is no pending or, to the Company’s knowledge, threatened action, suit, proceeding or claim by others that the Company or any of its subsidiaries infringes or otherwise violates any Intellectual Property or other proprietary rights of others, and neither the Company nor any of its subsidiaries is aware of any facts that, to the Company’s knowledge, could form a reasonable basis for any such action, suit or proceeding; (vi) the Company and its subsidiaries currently comply in all material respects with the terms of any agreement pursuant to which Intellectual Property has been licensed to the Company or any of its subsidiaries, and all such agreements are in full force and effect; (vii) the Company has not been notified of any inventorship challenges nor has an interference proceeding been initiated or, to the Company’s knowledge, been declared or threatened with respect to the issued or pending claims of any of the patent applications of the Company or any of its subsidiaries, and neither the Company nor any of its subsidiaries is aware of any facts that, to the Company’s knowledge, could form a reasonable basis for any such challenge or interference; and (viii) to the knowledge of the Company, there is no prior art or other material fact that would render any patent application within the Intellectual Property unpatentable that has not been disclosed to the U.S. Patent and Trademark Office as required by the rules and regulations of the U.S. Patent and Trademark Office.

(C) To the Company’s knowledge, no employee of the Company or any of its subsidiaries is the subject of any claim, proceeding or investigation involving a violation of any term of any employment contract, patent disclosure agreement, invention assignment agreement, non-competition agreement, non-solicitation agreement, nondisclosure agreement or any restrictive covenant to or with a former employer where the basis of such violation relates to such employee’s employment with the Company or any of the Company’s subsidiaries or actions undertaken by the employee while employed with the Company or any of the Company’s subsidiaries and the consequences of such violation would have a Material Adverse Effect.

(D) Except as previously provided to the Underwriters, neither the Company nor any of its subsidiaries has received any notice of any claim of infringement or conflict with any Intellectual Property rights of others during the last two years and, to the Company’s knowledge, no such notice or claim was received more than two years ago that remains unresolved.

(E) Each current employee of the Company and its subsidiaries, each employee of the Company and its subsidiaries who departed between September 30, 2006 and the date hereof and the Company’s contractor research and development firm have signed invention assignment agreements with the Company.

(t) No Undisclosed Relationships. No relationship, direct or indirect, exists between or among the Company or any of its subsidiaries, on the one hand, and the directors, officers, stockholders, customers or suppliers of the Company or any of its subsidiaries, on the other, that is required by the Securities Act to be described in the Registration Statement and the Prospectus and that is not so described in such documents and in the Time of Sale Information.

(u) Investment Company Act. The Company is not and, after giving effect to the offering and sale of the Shares and the application of the proceeds thereof received by the Company as described in the Registration Statement, the Time of Sale Information and the Prospectus, will not be required to register as an “investment company” or an entity “controlled” by an “investment company” within the meaning of the Investment Company Act of 1940, as amended, and the rules and regulations of the Commission thereunder (collectively, the “Investment Company Act”).

(v) Taxes. The Company and its subsidiaries have paid all federal, state, local and foreign taxes and filed all tax returns required to be paid or filed through the date hereof; and except as otherwise disclosed in the Registration Statement, the Time of Sale Information and the Prospectus, there is no tax deficiency that has been, or could reasonably be expected to be, asserted against the Company or any of its subsidiaries or any of their respective properties or assets, except where the failure to pay or file or where such deficiency would not, individually or in the aggregate, have a Material Adverse Effect.

(w) Licenses and Permits. The Company and its subsidiaries possess all licenses, certificates, permits and other authorizations issued by, and have made all declarations and filings with, the appropriate federal, state, local or foreign governmental or regulatory authorities that are necessary for the ownership or lease of their respective properties or the conduct of their respective businesses as described in the Registration Statement, the Time of Sale Information and the Prospectus, except where the failure to possess or make the same would not, individually or in the aggregate, have a Material Adverse Effect; and except as described in the Registration Statement,

the Time of Sale Information and the Prospectus, neither the Company nor any of its subsidiaries has received notice of any revocation or modification of any such license, certificate, permit or authorization or has any reason to believe that any such license, certificate, permit or authorization will not be renewed in the ordinary course.

(x) No Labor Disputes. No labor disturbance by or dispute with employees of the Company or any of its subsidiaries exists or, to the knowledge of the Company, is contemplated or threatened, and the Company is not aware of any existing or imminent labor disturbance by, or dispute with, the employees of any of its or its subsidiaries’ principal suppliers, contractors or customers, except as would not have a Material Adverse Effect.

(y) Compliance With Environmental Laws. (i) The Company and its subsidiaries (x) are in compliance with any and all applicable federal, state, local and foreign laws, rules, regulations, requirements, decisions and orders relating to the protection of human health or safety, the environment, natural resources, hazardous or toxic substances or wastes, pollutants or contaminants (collectively, “Environmental Laws”), (y) have received and are in compliance with all permits, licenses, certificates or other authorizations or approvals required of them under applicable Environmental Laws to conduct their respective businesses, and (z) have not received notice of any actual or potential liability under or relating to any Environmental Laws, including for the investigation or remediation of any disposal or release of hazardous or toxic substances or wastes, pollutants or contaminants, and have no knowledge of any event or condition that would reasonably be expected to result in any such notice, and (ii) there are no costs or liabilities associated with Environmental Laws of or relating to the Company or its subsidiaries, except in the case of each of (i) and (ii) above, for any such failure to comply, or failure to receive required permits, licenses or approvals, or cost or liability, as would not, individually or in the aggregate, have a Material Adverse Effect; and (iii) except as described in the Time of Sale Information, (x) there are no proceedings that are pending or, to the Company’s knowledge, contemplated, against the Company or any of its subsidiaries under any Environmental Laws in which a governmental entity is also a party, other than such proceedings regarding which it is reasonably believed no monetary sanctions of $100,000 or more will be imposed, (y) the Company and its subsidiaries are not aware of any issues regarding their respective compliance with Environmental Laws, or liabilities or other obligations under Environmental Laws or concerning hazardous or toxic substances or wastes, pollutants or contaminants, that could reasonably be expected to have a Material Adverse Effect, and (z) neither the Company nor any of its subsidiaries anticipates material capital expenditures relating to any Environmental Laws.

(z) Hazardous Substances. There has been no storage, generation, transportation, handling, treatment, disposal, discharge, emission, or other release of any kind of toxic wastes or hazardous substances, including, but not limited to, any naturally occurring radioactive materials, brine, drilling mud, crude oil, natural gas liquids and other petroleum materials, by, due to or caused by the Company or any of its subsidiaries (or, to the best of the Company’s knowledge, any other entity (including any predecessor) for whose acts or omissions the Company or any of its subsidiaries is or could reasonably be expected to be liable) upon any of the property now or previously owned or leased by the Company or any of its subsidiaries, or upon any other property, in violation of any Environmental Laws or in a manner or to a location that could reasonably be expected to give rise to any liability under the Environmental Laws, except for any violation or liability which would not, individually or in the aggregate, have a Material Adverse Effect.

(aa) Compliance With ERISA. (i) Except as would be expected to have a Material Adverse Effect, each employee benefit plan, within the meaning of Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), for which the Company or any member of its “Controlled Group” (defined as any organization which is a member of a controlled group of corporations within the meaning of Section 414 of the Internal Revenue Code of 1986, as amended (the “Code”)), would have any liability (each, a “Plan”) has been maintained in compliance with its terms and the requirements of any applicable statutes, orders, rules and regulations, including but not limited to ERISA and the Code; (ii) no prohibited transaction, within the meaning of Section 406 of ERISA or Section 4975 of the Code, has occurred with respect to any Plan excluding transactions effected pursuant to a statutory or administrative exemption; (iii) for each Plan that is subject to the funding rules of Section 412 of the Code or Section 302 of ERISA, no “accumulated funding deficiency” as defined in Section 412 of the Code, whether or not waived, has occurred or is reasonably expected to occur; (iv) the fair market value of the assets of each Plan exceeds the present value of all benefits accrued under such Plan (determined based on those assumptions used to fund such Plan); (v) no “reportable event” (within the meaning of Section 4043(c) of ERISA) has occurred or is reasonably expected to occur; and (vi) neither the Company nor any member of the Controlled Group has incurred, nor reasonably expects to incur, any liability under Title IV of ERISA (other than contributions to the Plan or premiums to the PBGC, in the ordinary course and without default) in respect of a Plan (including a “multiemployer plan”, within the meaning of Section 4001(a)(3) of ERISA).

(bb) Disclosure Controls. The Company and its subsidiaries maintain an effective system of “disclosure controls and procedures” (as defined in Rule 13a-15(e) of the Exchange Act) that is designed to ensure that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Commission’s rules and forms, including controls and procedures designed to ensure that such information is accumulated and communicated to the Company’s management as appropriate to allow timely decisions regarding required disclosure.

(cc) Accounting Controls. The Company and its subsidiaries maintain systems of “internal control over financial reporting” (as defined in Rule 13a-15(f) of the Exchange Act) that comply with the requirements of the Exchange Act and have been designed by, or under the supervision of, their respective principal executive and principal financial officers, or persons performing similar functions, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles, including, but not limited to internal accounting controls sufficient to provide reasonable assurance that (i) transactions are executed in accordance with management’s general or specific authorizations; (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles and to maintain asset accountability; (iii) access to assets is permitted only in accordance with management’s general or specific authorization; and (iv) the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences. Except as disclosed in the Registration Statement, the Time of Sale Information and the Prospectus, there are no significant deficiencies or material weaknesses in the Company’s internal controls. The Company’s auditors and the Audit Committee of the Board of Directors of the Company have been advised of: (i) all significant deficiencies and material weaknesses in the

design or operation of internal controls over financial reporting which are reasonably likely to adversely affect the Company’s ability to record, process, summarize and report financial information; and (ii) any fraud, whether or not material, that involves management or other employees who have a significant role in the Company’s internal controls over financial reporting.

(dd) Insurance. The Company and its subsidiaries have insurance covering their respective properties, operations, personnel and businesses which insurance is in amounts and insures against such losses and risks as are prudent and customary in the business in which they are engaged; and neither the Company nor any of its subsidiaries has (i) received notice from any insurer or agent of such insurer that capital improvements or other expenditures are required or necessary to be made in order to continue such insurance or (ii) any reason to believe that it will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage at reasonable cost from similar insurers as may be necessary to continue its business.

(ee) No Unlawful Payments. Neither the Company nor any of its subsidiaries nor, to the knowledge of the Company, any director, officer, agent, employee or other person associated with or acting on behalf of the Company or any of its subsidiaries has (i) used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expense relating to political activity; (ii) made any direct or indirect unlawful payment to any foreign or domestic government official or employee from corporate funds; (iii) violated or is in violation of any provision of the Foreign Corrupt Practices Act of 1977; or (iv) made any bribe, rebate, payoff, influence payment, kickback or other unlawful payment.

(ff) Compliance with Money Laundering Laws. The operations of the Company and its subsidiaries are and, to the Company’s knowledge, have been conducted in material compliance with applicable financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the money laundering statutes of all jurisdictions, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any governmental agency (collectively, the “Money Laundering Laws”) and no action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator involving the Company or any of its subsidiaries with respect to the Money Laundering Laws is pending or, to the knowledge of the Company, threatened.

(gg) Compliance with OFAC. None of the Company, any of its subsidiaries or, to the knowledge of the Company, any director, officer, agent, employee or affiliate of the Company or any of its subsidiaries is currently subject to any U.S. sanctions administered by the Office of Foreign Assets Control of the U.S. Department of the Treasury (“OFAC”); and the Company will not directly or indirectly use the proceeds of the offering of the Shares hereunder, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other person or entity, for the purpose of financing the activities of any person currently subject to any U.S. sanctions administered by OFAC.

(hh) No Restrictions on Subsidiaries. No subsidiary of the Company is currently prohibited, directly or indirectly, under any agreement or other instrument to which it is a party or is subject, from paying any dividends to the Company, from making any other distribution on such subsidiary’s capital stock, from repaying to the Company any loans or advances to such subsidiary

from the Company or from transferring any of such subsidiary’s properties or assets to the Company or any other subsidiary of the Company.

(ii) No Broker’s Fees. Neither the Company nor any of its subsidiaries is a party to any contract, agreement or understanding with any person (other than this Agreement) that would give rise to a valid claim against the Company or any of its subsidiaries or any Underwriter for a brokerage commission, finder’s fee or like payment in connection with the offering and sale of the Shares.

(jj) No Registration Rights. No person has the right to require the Company or any of its subsidiaries to register any securities for sale under the Securities Act by reason of the filing of the Registration Statement with the Commission, the issuance and sale of the Shares by the Company or, to the knowledge of the Company, the sale of the Shares to be sold by the Selling Stockholders hereunder, other than those that have been exercised or waived.

(kk) No Stabilization. The Company has not taken, directly or indirectly, any action designed to or that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Shares.

(ll) Business With Cuba. The Company has complied with all provisions of Section 517.075, Florida Statutes (Chapter 92-198, Laws of Florida) relating to doing business with the Government of Cuba or with any person or affiliate located in Cuba.

(mm) Margin Rules. Neither the issuance, sale and delivery of the Shares nor the application of the proceeds thereof by the Company as described in the Registration Statement, the Time of Sale Information and the Prospectus will violate Regulation T, U or X of the Board of Governors of the Federal Reserve System or any other regulation of such Board of Governors.

(nn) Forward-Looking Statements. No forward-looking statement (within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act) contained in the Registration Statement, the Time of Sale Information and the Prospectus has been made or reaffirmed without a reasonable basis or has been disclosed other than in good faith.

(oo) Statistical and Market Data. Nothing has come to the attention of the Company that has caused the Company to believe that the statistical and market-related data included in the Registration Statement, the Time of Sale Information and the Prospectus is not based on or derived from sources that are reliable and accurate in all material respects.

(pp) Xxxxxxxx-Xxxxx Act. There is and has been no failure on the part of the Company or any of the Company’s directors or officers, in their capacities as such, to comply in any material respect with any applicable provision of the Xxxxxxxx-Xxxxx Act of 2002 and the rules and regulations promulgated in connection therewith (the “Xxxxxxxx-Xxxxx Act”), including Section 402 related to loans.

(qq) Status under the Securities Act. The Company is not an “ineligible issuer,” as defined under the Securities Act, in each case at the times specified in the Securities Act in

connection with the offering of the Shares. The Company has paid the registration fee for this offering under the Securities Act.

(rr) No Ratings. There are no securities or preferred stock of or guaranteed by the Company or any of its subsidiaries that are rated by a “nationally recognized statistical rating organization,” as such term is defined by the Commission for purposes of Rule 436(g)(2) under the Securities Act.

(ss) Reincorporation. The merger of XxxxxXxxxx.Xxx, Inc., an Oklahoma corporation (the “Predecessor Corporation”), with and into the Company (the “Reincorporation”), was duly authorized by all necessary action of the shareholders of the Predecessor Corporation, the Predecessor Corporation, the stockholders of the Company, and the Company. The Predecessor Corporation and the Company had all necessary corporate power and authority to execute and deliver any agreements, actions, and/or filings necessary to complete the Reincorporation, and the Reincorporation did not (i) conflict with or result in a breach or violation of any of the terms or provisions of, impose any lien, charge or encumbrance upon any property or assets of the Predecessor Corporation or the Company and any of their respective subsidiaries, or constitute a default under, any mortgages, indentures, loans, leases, contracts, covenants, plans, insurance policies or other agreements, instruments, arrangements, understandings or commitments, permits, concessions, franchises or licenses (“Contracts”) to which the Predecessor Corporation, the Company or any of their respective subsidiaries is a party or by which the Predecessor Corporation, the Company or any of their respective subsidiaries is bound or to which any of the property or assets of the Predecessor Corporation, the Company or any of their respective subsidiaries is subject; (ii) result in any violation of the provisions of the charter or by-laws (or similar organizational documents) of the Predecessor Corporation, the Company or any of their respective subsidiaries; or (iii) result in any violation of any statute or any order, rule or regulation of any court or governmental agency or body having jurisdiction over the Predecessor Corporation, the Company or any of their respective subsidiaries or any of their properties or assets. No consent, approval, authorization or order of, or filing or registration with, any court or governmental agency or body having jurisdiction over the Predecessor Corporation, the Company or any of their respective subsidiaries or any of their properties or assets was required for the consummation of the Reincorporation, except as were obtained or made as required. The Company succeeded to all of the material rights, privileges, powers and franchises, and is subject to all of the material restrictions, disabilities and duties of the Predecessor Corporation. The Company succeeded to all of the Contracts that are material to the Predecessor Corporation, and all consents or approvals required for the Company to succeed to all such Contracts have been obtained. The issuance of capital stock by the Company in the Reincorporation was in compliance with all applicable state securities or blue sky laws and was exempt from registration under the Securities Act.

(tt) The Options. The unissued Shares issuable upon the exercise of options (the “Options”) to be exercised by certain of the Selling Stockholders (the “Optionholders”) have been duly authorized by the Company and validly reserved for issuance, and at the time of delivery to the Underwriters with respect to such Shares, such Shares will be issued and delivered in accordance with the provisions of the Stock Option Agreements between the Company and such Selling Stockholders pursuant to which such Options were granted (the “Option Agreements”) and will be validly issued, fully paid and non-assessable and will conform in all material respects to the description thereof in the Prospectus.

(uu) The Option Agreements. The Options were duly authorized and issued pursuant to the Option Agreements and constitute valid and binding obligations of the Company and the Optionholders are entitled to the benefits provided by the Option Agreements; the Option Agreements were duly authorized, executed and delivered and constitute valid and legally binding agreements enforceable against the Company in accordance with their terms except as enforceability may be limited by applicable bankruptcy, insolvency or similar laws affecting creditors’ rights generally or by equitable principles relating to enforceability; and the Options and the Option Agreements conform in all material respects to the descriptions thereof in the Prospectus.

4. Representations and Warranties of the Selling Stockholders. Each of the Selling Stockholders severally represents and warrants to each Underwriter and the Company that:

(a) Required Consents; Authority. All consents, approvals, authorizations and orders necessary for the execution and delivery by such Selling Stockholder of this Agreement and the Power of Attorney (the “Power of Attorney”) and the Custody Agreement (the “Custody Agreement”) hereinafter referred to, and for the sale and delivery of the Shares to be sold by such Selling Stockholder hereunder, have been obtained (other than as may be required under any United States federal or state securities laws or antifraud laws (collectively, the “Securities Laws”)); and such Selling Stockholder, if an individual, has all right, power and authority and, if a corporation, limited liability partnership, limited liability corporation or limited partnership has full corporate, limited liability partnership, limited liability corporation or limited partnership, as the case may be, right, power and authority to enter into this Agreement, the Power of Attorney and the Custody Agreement and to sell, assign, transfer and deliver the Shares to be sold by such Selling Stockholder hereunder; and this Agreement, the Power of Attorney and the Custody Agreement have each been duly authorized, executed and delivered by such Selling Stockholder.

(b) No Conflicts. The execution, delivery and performance by such Selling Stockholder of this Agreement, the Power of Attorney and the Custody Agreement and the sale of the Shares to be sold by such Selling Stockholder will not (i) conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, or result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of such Selling Stockholder pursuant to, any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which such Selling Stockholder is a party or by which such Selling Stockholder is bound or to which any of the property or assets of such Selling Stockholder is subject, (ii) result in any violation of the provisions of the charter or by-laws or similar organizational documents of such Selling Stockholder or (iii) result in the violation of any law or statute or any judgment, order, rule or regulation of any court or arbitrator or governmental or regulatory agency, provided that no representation is made with respect to the compliance by any party with any applicable Securities Laws, and provided, further, that except in the case of clauses (i) and (iii) for any conflicts, breaches, violations, defaults, liens, charges or encumbrances which would not materially adversely affect such Selling Stockholder’s ability to consummate the sale of such Shares.

(c) Title to Shares. Upon the consummation of the transactions contemplated hereby, the conversion of the Selling Stockholder’s preferred stock, $0.001 per share, into Common Stock, and the exercise of the Options by the Optionholders, each Selling Stockholder is the record and beneficial owner of the Shares to be sold at the Closing Date or the Additional Closing Date, as the

case may be, by such Selling Stockholder hereunder, free and clear of all liens, encumbrances, equities or adverse claims; and upon payment for the Shares to be sold by such Selling Stockholder pursuant to this Agreement, delivery of such Shares, as directed by the Underwriters, to Cede & Co. (“Cede”) or such other nominee as may be designated by the Depository Trust Company (“DTC”), registration of such Shares in the name of Cede or such other nominee and the crediting of such Shares on the books of DTC to securities accounts of the Underwriters, (A) DTC will be a “protected purchaser” of such Shares within the meaning of Section 8-303 of the Uniform Commercial Code as in effect in the State of New York (the “UCC”), (B) under Section 8-501 of the UCC, the Underwriters will acquire a valid security entitlement with respect to such Shares and (C) no action based on an “adverse claim,” within the meaning of Section 8-102 of the UCC, to such Shares may be asserted against the Underwriters with respect to such security entitlement; for purposes of this representation, such Selling Stockholder may assume that when such payment, delivery, registration and crediting occur, (x) such Shares will have been registered in the name of Cede or another nominee designated by DTC, in each case on the Company’s share registry in accordance with its certificate of incorporation and applicable law, (y) DTC is a “securities intermediary” within the meaning of Section 8-102 of the UCC and (z) DTC indicates by book entries on its books that security entitlements with respect to the Shares have been credited to the accounts of the several Underwriters.

(d) No Stabilization. Such Selling Stockholder has not taken and will not take, directly or indirectly, any action designed to or that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Shares to facilitate the sale or resale of the Shares (except no representation is made as to the activities of the Underwriters).

(e) Time of Sale Information. The Time of Sale Information, at the Time of Sale did not, and at the Closing Date and as of the Additional Closing Date, as the case may be, will not, contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading and no statement of material fact included in the Prospectus has been omitted from the Time of Sale Information and no statement of material fact included in the Time of Sale Information that is required to be included in the Prospectus has been omitted therefrom; provided that such Selling Stockholder’s representations under this Section 4(e) shall only apply to any untrue statement of a material fact or omission to state a material fact made in reliance upon and in conformity with information furnished by such Selling Stockholder, in writing to the Company, relating to such Selling Stockholder expressly for use in the Time of Sale Information, it being understood and agreed that for the purposes of this Agreement, the only information so furnished by such Selling Stockholder consists of the legal name, address and number of shares of Common Stock owned by such Selling Stockholder before and after the offering and the other information with respect to such Selling Stockholder (excluding percentages) which appear in the table (and corresponding footnotes) under the caption “Principal and Selling Stockholders” (with respect to each Selling Stockholder, the “Selling Stockholder Information”).

(f) Issuer Free Writing Prospectus. Other than the Registration Statement, the Preliminary Prospectus and the Prospectus, such Selling Stockholder (including its agents and representatives, other than the Underwriters in their capacity as such) has not made, used, prepared, authorized, approved or referred to and will not prepare, make, use, authorize, approve or refer to any Issuer Free Writing Prospectus, other than (i) any document not constituting a prospectus

pursuant to Section 2(a)(10)(a) of the Securities Act or Rule 134 under the Securities Act, (ii) the documents listed on Annex B hereto, each electronic road show and any other written communications approved in writing in advance by the Company and the Representatives or (iii) any document prepared by the Company without input from the Selling Stockholders or their agents.

(g) Registration Statement and Prospectus. As of the applicable effective date of the Registration Statement and any amendment thereto, the Registration Statement complied and will comply in all material respects with the Securities Act, and did not and will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein not misleading; and as of the date of the Prospectus and any amendment or supplement thereto and as of the Closing Date and as of the Additional Closing Date, as the case may be, the Prospectus will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided such Selling Stockholder’s representations under this Section 4(g) shall only apply to any untrue statement of a material fact or omission to state a material fact made in reliance upon and in conformity with any information furnished by such Selling Stockholder, in writing to the Company, relating to such Selling Stockholder expressly for use in the Registration Statement or the Prospectus (or any amendment or supplement thereto), it being understood and agreed that for the purposes of this agreement, the only information so furnished by such Selling Stockholder consists of such Selling Stockholder’s Selling Stockholder Information.

Each of the Selling Stockholders represents and warrants that certificates in negotiable form representing all of the Shares to be sold by such Selling Stockholders hereunder other than any such Shares to be issued upon exercise of Options have been, and each of the Selling Stockholders who is selling Shares upon the exercise of Options represents and warrants that duly completed and executed irrevocable Option exercise notices, in the forms specified by the relevant Option Agreement, with respect to all of the Shares to be sold by such Selling Stockholders hereunder have been, placed in custody under a Custody Agreement relating to such Shares, in the form heretofore furnished to you, duly executed and delivered by such Selling Stockholder to American Stock Transfer & Trust Company, as custodian (the “Custodian”), and that such Selling Stockholder has duly executed and delivered Powers of Attorney, in the form heretofore furnished to you, appointing the person or persons indicated in Schedule 2 hereto, and each of them, as such Selling Stockholder’s Attorneys-in-fact (the “Attorneys-in-Fact” or any one of them the “Attorney-in Fact”) with authority to execute and deliver this Agreement on behalf of such Selling Stockholder, to determine the purchase price to be paid by the Underwriters to the Selling Stockholders as provided herein, to authorize the delivery of the Shares to be sold by such Selling Stockholder hereunder, to authorize (if applicable) the exercise of the Options to be exercised with respect to the Shares to be sold by such Selling Stockholder hereunder and otherwise to act on behalf of such Selling Stockholder in connection with the transactions contemplated by this Agreement and the Custody Agreement.

Each of the Selling Stockholders specifically agrees that the Shares represented by the certificates or the irrevocable Option exercise notice, in either case held in custody for such Selling Stockholder under the Custody Agreement are subject to the interests of the Underwriters hereunder, and that the arrangements made by such Selling Stockholder for such custody, and the appointment by

such Selling Stockholder of the Attorneys-in-Fact by the Power of Attorney, are to that extent irrevocable. Each of the Selling Stockholders specifically agrees that the obligations of such Selling Stockholder hereunder shall not be terminated by operation of law, whether by the death or incapacity of any individual Selling Stockholder, or, in the case of an estate or trust, by the death or incapacity of any executor or trustee or the termination of such estate or trust, or in the case of a partnership, corporation or similar organization, by the dissolution of such partnership, corporation or organization, or by the occurrence of any other event. If any individual Selling Stockholder or any such executor or trustee should die or become incapacitated, or if any such estate or trust should be terminated, or if any such partnership, corporation or similar organization should be dissolved, or if any other such event should occur, before the delivery of the Shares hereunder, certificates representing such Shares shall be delivered by or on behalf of such Selling Stockholder in accordance with the terms and conditions of this Agreement and the Custody Agreement, and actions taken by the Attorneys-in-Fact pursuant to the Powers of Attorney shall be as valid as if such death, incapacity, termination, dissolution or other event had not occurred, regardless of whether or not the Custodian, the Attorneys-in-Fact, or any of them, shall have received notice of such death, incapacity, termination, dissolution or other event.

5. Further Agreements of the Company. The Company covenants and agrees with each Underwriter that:

(a) Required Filings. The Company will file the final Prospectus with the Commission within the time periods specified by Rule 424(b) and Rule 430A, 430B or 430C under the Securities Act, will file any Issuer Free Writing Prospectus to the extent required by Rule 433 under the Securities Act, and will promptly furnish copies of the Prospectus and each Issuer Free Writing Prospectus (to the extent not previously delivered) to the Underwriters in New York City prior to 10:00 A.M., New York City time, on the business day next succeeding the date of this Agreement in such quantities as the Representatives may reasonably request.

(b) Delivery of Copies. The Company will deliver, without charge, (i) to the Representatives, four signed copies of the Registration Statement as originally filed and each amendment thereto, in each case including all exhibits and consents filed therewith; and (ii) to each Underwriter (A) a conformed copy of the Registration Statement as originally filed and each amendment thereto (without exhibits) and (B) during the Prospectus Delivery Period (as defined below), as many copies of the Prospectus (including all amendments and supplements thereto) and each Issuer Free Writing Prospectus as the Representatives may reasonably request. As used herein, the term “Prospectus Delivery Period” means such period of time after the first date of the public offering of the Shares as in the opinion of counsel for the Underwriters a prospectus relating to the Shares is required by law to be delivered (or required to be delivered but for Rule 172 under the Securities Act) in connection with sales of the Shares by any Underwriter or dealer.

(c) Amendments or Supplements, Issuer Free Writing Prospectuses. Before making, preparing, using, authorizing, approving, referring to or filing any Issuer Free Writing Prospectus, and before filing any amendment or supplement to the Registration Statement or the Prospectus, the Company will furnish to the Representatives and counsel for the Underwriters a copy of the proposed Issuer Free Writing Prospectus, amendment or supplement for review and will not make, prepare, use, authorize, approve, refer to or file any such Issuer Free Writing Prospectus or file any such proposed amendment or supplement to which the Representatives reasonably object.

(d) Notice to the Representatives. The Company will advise the Representatives promptly, and confirm such advice in writing (which may be by email), (i) when the Registration Statement has become effective; (ii) when any amendment to the Registration Statement has been filed or becomes effective; (iii) when any supplement to the Prospectus or any Issuer Free Writing Prospectus or any amendment to the Prospectus has been filed; (iv) of any request by the Commission for any amendment to the Registration Statement or any amendment or supplement to the Prospectus or the receipt of any comments from the Commission relating to the Registration Statement or any other request by the Commission for any additional information; (v) of the issuance by the Commission of any order suspending the effectiveness of the Registration Statement or preventing or suspending the use of any Preliminary Prospectus, any of the Time of Sale Information or the Prospectus or the initiation or threatening of any proceeding for that purpose or pursuant to Section 8A of the Securities Act; (vi) of the occurrence of any event within the Prospectus Delivery Period as a result of which the Prospectus, the Time of Sale Information or any Issuer Free Writing Prospectus as then amended or supplemented would include any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances existing when the Prospectus, the Time of Sale Information or any such Issuer Free Writing Prospectus is delivered to a purchaser, not misleading; and (vii) of the receipt by the Company of any notice with respect to any suspension of the qualification of the Shares for offer and sale in any jurisdiction or the initiation or threatening of any proceeding for such purpose; and the Company will use its best efforts to prevent the issuance of any such order suspending the effectiveness of the Registration Statement, preventing or suspending the use of any Preliminary Prospectus, any of the Time of Sale Information or the Prospectus or suspending any such qualification of the Shares and, if any such order is issued, to obtain as soon as possible the withdrawal thereof.

(e) Ongoing Compliance. (1) If during the Prospectus Delivery Period (i) any event shall occur or condition shall exist as a result of which the Prospectus as then amended or supplemented would include any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances existing when the Prospectus is delivered to a purchaser, not misleading or (ii) it is necessary to amend or supplement the Prospectus to comply with law, the Company will immediately notify the Underwriters thereof and forthwith prepare and, subject to paragraph (c) above, file with the Commission and furnish to the Underwriters and to such dealers as the Representatives may designate, such amendments or supplements to the Prospectus as may be necessary so that the statements in the Prospectus as so amended or supplemented will not, in the light of the circumstances existing when the Prospectus is delivered to a purchaser, be misleading or so that the Prospectus will comply with law and (2) if at any time prior to the Closing Date (i) any event shall occur or condition shall exist as a result of which the Time of Sale Information as then amended or supplemented would include any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances existing when the Time of Sale Information is delivered to a purchaser, not misleading or (ii) it is necessary to amend or supplement the Time of Sale Information to comply with law, the Company will immediately notify the Underwriters thereof and forthwith prepare and, subject to paragraph (c) above, file with the Commission (to the extent required) and furnish to the Underwriters and to such dealers as the Representatives may designate, such amendments or supplements to the Time of Sale Information as may be necessary so that the statements in the Time of Sale Information as so

amended or supplemented will not, in the light of the circumstances, be misleading or so that the Time of Sale Information will comply with law.

(f) Blue Sky Compliance. The Company will qualify the Shares for offer and sale under the securities or Blue Sky laws of such jurisdictions as the Representatives shall reasonably request and will continue such qualifications in effect so long as required for distribution of the Shares; provided that the Company shall not be required to (i) qualify as a foreign corporation or other entity or as a dealer in securities in any such jurisdiction where it would not otherwise be required to so qualify, (ii) file any general consent to service of process in any such jurisdiction or (iii) subject itself to taxation in any such jurisdiction if it is not otherwise so subject.

(g) Earning Statement. The Company will make generally available to its security holders and the Representatives as soon as practicable an earning statement that satisfies the provisions of Section 11(a) of the Securities Act and Rule 158 of the Commission promulgated thereunder covering a period of at least twelve months beginning with the first fiscal quarter of the Company occurring after the “effective date” (as defined in Rule 158) of the Registration Statement.

(h) Clear Market. For a period of 180 days after the date of the initial public offering of the Shares, the Company will not (i) offer, pledge, publicly announce the intention to sell, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase or otherwise transfer or dispose of, directly or indirectly, any shares of Stock or any securities convertible into or exercisable or exchangeable for Stock or (ii) enter into any swap or other agreement that transfers, in whole or in part, any of the economic consequences of ownership of the Stock, whether any such transaction described in clause (i) or (ii) above is to be settled by delivery of Stock or such other securities, in cash or otherwise, without the prior written consent of the Representatives, other than (a) the Shares to be sold hereunder, (b) any shares of Stock of the Company issued upon the exercise of options granted under existing stock plans disclosed in the Registration Statement, the Time of Sale Information and the Prospectus, (c) the grant or issuance by the Company of employee, consultant or director stock options or restricted stock units in the ordinary course of business under stock plans described in the Registration Statement, the Time of Sale Information and the Prospectus, (d) the issuance of securities in connection with the acquisition by the Company or any of its subsidiaries of the securities, businesses, property or other assets of another person or entity or pursuant to any employee benefit plan assumed by the Company in connection with any such acquisition, or (e) the issuance of securities in connection with joint ventures, commercial relationships or other strategic transactions; provided that, in the case of clauses (d) and (e), the aggregate number of shares issued in all such acquisitions and transactions does not exceed 8% of the outstanding common stock following the offering of the Common Stock and prior to any issuance the Company shall cause each recipient of such securities to execute and deliver to you a Lock-Up Agreement substantially in the form of Exhibit A hereto. Notwithstanding the foregoing, if (1) during the last 17 days of the 180-day restricted period, the Company issues an earnings release or material news or a material event relating to the Company occurs; or (2) prior to the expiration of the 180-day restricted period, the Company announces that it will release earnings results during the 16-day period beginning on the last day of the 180-day period, the restrictions imposed by this Agreement shall continue to apply until the expiration of the 18-day period beginning on the issuance of the earnings release or the occurrence of the material news or material event.

(i) Use of Proceeds. The Company will apply the net proceeds from the sale of the Shares as described in the Registration Statement, the Time of Sale Information and the Prospectus under the heading “Use of Proceeds”.

(j) No Stabilization. The Company will not take, directly or indirectly, any action designed to or that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Shares.

(k) Exchange Listing. The Company will use its best efforts to list, subject to notice of issuance, the Shares on the NYSE.

(l) Reports. Until the fifth anniversary of the date hereof, the Company will furnish to the Representatives, as soon as they are available, copies of all reports or other communications (financial or other) furnished to holders of the Shares, and copies of any reports and financial statements furnished to or filed with the Commission or any national securities exchange or automatic quotation system, except for such reports or communications which are submitted to the SEC via XXXXX.

(m) Record Retention. The Company will, pursuant to reasonable procedures developed in good faith, retain copies of each Issuer Free Writing Prospectus that is not filed with the Commission in accordance with Rule 433 under the Securities Act.

(n) Filings. The Company will file with the Commission such reports as may be required by Rule 463 under the Securities Act.

(o) Lock-Up and Standback Agreements. The Company will enforce any and all lock-up agreements (including those entered into through electronic signatures, emails or other electronic means) to which you and any of the Company’s directors, officers, stockholders or optionees are parties throughout the full terms of such agreements, will enter stop transfer instructions with the Company’s registrar and transfer agent to prohibit any stock transfers by such individuals and entities throughout such terms and will not consent to or permit any stock transfers prohibited thereby without the prior written consent of X.X. Xxxxxx Securities Inc., Xxxxxxx Sachs & Co. and Xxxxxx Xxxxxxx & Co. Incorporated.

6. Further Agreements of the Selling Stockholders. Each of the Selling Stockholders covenants and agrees with each Underwriter that:

(a) Clear Market. It has or will deliver a Lock-Up Agreement substantially in the form of Exhibit A.

(b) Tax Form. It will deliver to the Representatives prior to or at the Closing Date a properly completed and executed United States Treasury Department Form W-9 (or other applicable form or statement specified by the Treasury Department regulations in lieu thereof) in order to facilitate the Underwriters’ documentation of their compliance with the reporting and withholding provisions of the Tax Equity and Fiscal Responsibility Act of 1982 with respect to the transactions herein contemplated.

7. Certain Agreements of the Underwriters. Each Underwriter hereby represents and agrees that:

(a) It has not and will not use, authorize use of, refer to, or participate in the planning for use of, any “free writing prospectus”, as defined in Rule 405 under the Securities Act (which term includes use of any written information furnished to the Commission by the Company and not incorporated by reference into the Registration Statement and any press release issued by the Company) other than (i) a free writing prospectus that contains no “issuer information” (as defined in Rule 433(h)(2) under the Securities Act) that was not included in the Preliminary Prospectus or a previously filed Issuer Free Writing Prospectus, (ii) any Issuer Free Writing Prospectus listed on Annex B or prepared pursuant to Section 5(c) above (including any electronic road show), or (iii) any free writing prospectus prepared by such underwriter and approved by the Company in advance in writing (each such free writing prospectus referred to in clauses (i) or (iii), an “Underwriter Free Writing Prospectus”).

(b) It has not and will not, without the prior written consent of the Company, use any free writing prospectus that contains the final terms of the Shares unless such terms have previously been included in a free writing prospectus filed with the Commission; provided that Underwriters may use a term sheet substantially in the form of Annex C hereto without the consent of the Company; provided further that any Underwriter using such term sheet shall notify the Company, and provide a copy of such term sheet to the Company, prior to, or substantially concurrently with, the first use of such term sheet.

(c) It is not subject to any pending proceeding under Section 8A of the Securities Act with respect to the offering (and will promptly notify the Company and the Selling Stockholders if any such proceeding against it is initiated during the Prospectus Delivery Period).

8. Conditions of Underwriters’ Obligations. The obligation of each Underwriter to purchase the Underwritten Shares on the Closing Date or the Option Shares on the Additional Closing Date, as the case may be, as provided herein is subject to the performance by the Company and each of the Selling Stockholders of their respective covenants and other obligations hereunder and to the following additional conditions:

(a) Registration Compliance; No Stop Order. No order suspending the effectiveness of the Registration Statement shall be in effect, and no proceeding for such purpose or pursuant to Section 8A under the Securities Act shall be pending before or threatened by the Commission; the Prospectus and each Issuer Free Writing Prospectus shall have been timely filed with the Commission under the Securities Act (in the case of an Issuer Free Writing Prospectus, to the extent required by Rule 433 under the Securities Act) and in accordance with Section 5(a) hereof; and all requests by the Commission for additional information shall have been complied with to the reasonable satisfaction of the Representatives.

(b) Representations and Warranties. The respective representations and warranties of the Company and the Selling Stockholders contained herein shall be true and correct on the date hereof and on and as of the Closing Date or the Additional Closing Date, as the case may be; and the statements of the Company and its officers and of each of the Selling Stockholders and their

partners or officers made in any certificates delivered pursuant to this Agreement shall be true and correct on and as of the Closing Date or the Additional Closing Date, as the case may be.

(c) No Material Adverse Change. No event or condition of a type described in Section 3(f) hereof shall have occurred or shall exist, which event or condition is not described in the Time of Sale Information (excluding any amendment or supplement thereto) and the Prospectus (excluding any amendment or supplement thereto) and the effect of which in the judgment of the Representatives makes it impracticable or inadvisable to proceed with the offering, sale or delivery of the Shares on the Closing Date or the Additional Closing Date, as the case may be, on the terms and in the manner contemplated by this Agreement, the Time of Sale Information and the Prospectus.

(d) Officer’s Certificate. The Representatives shall have received on and as of the Closing Date or the Additional Closing Date, as the case may be, (x) a certificate on behalf of the Company of the chief executive officer and the chief financial officer of the Company (i) confirming that such officers have carefully reviewed the Registration Statement, the Time of Sale Information and the Prospectus and, to the best knowledge of such officers, the representations of the Company set forth in Sections 3(b) and 3(d) hereof are true and correct, (ii) confirming that the other representations and warranties of the Company in this Agreement are true and correct and that the Company has complied with all agreements and satisfied all conditions on its part to be performed or satisfied hereunder at or prior to such Closing Date and (iii) to the effect set forth in paragraphs (a) and (c) above and (y) a certificate of each of the Selling Stockholders, in form and substance reasonably satisfactory to the Representatives, (A) confirming that the representations of such Selling Stockholder set forth in Sections 4(e), 4(f) and 4(g) hereof is true and correct and (B) confirming that the other representations and warranties of such Selling Stockholder in this agreement are true and correct and that the such Selling Stockholder has complied with all agreements and satisfied all conditions on their part to be performed or satisfied hereunder at or prior to such Closing Date.

(e) Comfort Letters. On the date of this Agreement and on the Closing Date or the Additional Closing Date, as the case may be, PricewaterhouseCoopers LLP shall have furnished to the Representatives, at the request of the Company, letters, dated the respective dates of delivery thereof and addressed to the Underwriters, in form and substance reasonably satisfactory to the Representatives, containing statements and information of the type customarily included in accountants’ “comfort letters” to underwriters with respect to the financial statements and certain financial information contained in the Registration Statement, the Time of Sale Information and the Prospectus; provided, that the letter delivered on the Closing Date or the Additional Closing Date, as the case may be, shall use a “cut-off” date no more than three business days prior to such Closing Date or such Additional Closing Date, as the case may be.

(f) Opinion and 10b-5 Statement of Counsel for the Company. Xxxxxx Xxxxxxx Xxxxxxxx & Xxxxxx, Professional Corporation, counsel for the Company, shall have furnished to the Representatives, at the request of the Company, their written opinion and 10b-5 statement, dated the Closing Date or the Additional Closing Date, as the case may be, and addressed to the Underwriters, in form and substance reasonably satisfactory to the Representatives, to the effect set forth in Annex A-1 hereto.

(g) Opinion of Counsel for the Selling Stockholders. Counsel for each of the Selling Stockholders shall have furnished to the Representatives, at the request of the Selling Stockholders, their written opinion, dated the Closing Date or the Additional Closing Date, as the case may be, and addressed to the Underwriters, in form and substance reasonably satisfactory to the Representatives, to the effect set forth in Annex A-2 hereto or as otherwise individually negotiated.

(h) Opinion of Counsel for Foreign Subsidiary. Counsel for each of the Company’s Ireland, Czech Republic and Singapore subsidiaries shall have furnished to the Representatives, at the request of the subsidiary, their written opinion, dated the Closing Date or the Additional Closing Date, as the case may be, and addressed to the Underwriters, in form and substance reasonably satisfactory to the Representatives, to the effect set forth in paragraphs (a), (b) and (d) (and, in the case of Ireland, (c)) of Annex A-3 hereto.

(i) Opinion and 10b-5 Statement of Counsel for the Underwriters. The Representatives shall have received on and as of the Closing Date or the Additional Closing Date, as the case may be, an opinion and 10b-5 statement of Fenwick & West LLP, counsel for the Underwriters, with respect to such matters as the Representatives may reasonably request, and such counsel shall have received such documents and information as they may reasonably request to enable them to pass upon such matters.

(j) No Legal Impediment to Issuance and/or Sale. No action shall have been taken and no statute, rule, regulation or order shall have been enacted, adopted or issued by any federal, state or foreign governmental or regulatory authority that would, as of the Closing Date or the Additional Closing Date, as the case may be, prevent the issuance or sale of the Shares by the Company or the sale of the Shares by the Selling Stockholders; and no injunction or order of any federal, state or foreign court shall have been issued that would, as of the Closing Date or the Additional Closing Date, as the case may be, prevent the issuance or sale of the Shares by the Company or the sale of the Shares by the Selling Stockholders.

(k) Good Standing. The Representatives shall have received on and as of the Closing Date or the Additional Closing Date, as the case may be, satisfactory evidence of the good standing of the Company and each of its Delaware, Ireland, Czech Republic, Singapore, Cyprus, New Zealand and Canadian subsidiaries in their respective jurisdictions of organization and their good standing as foreign entities in such other jurisdictions as the Representatives may reasonably request, in each case in writing or any standard form of telecommunication from the appropriate governmental authorities of such jurisdictions.

(l) Exchange Listing. The Shares to be delivered on the Closing Date or Additional Closing Date, as the case may be, shall have been approved for listing on the NYSE, subject to official notice of issuance.

(m) Lock-up Agreements. The “lock-up” agreements, each substantially in the form of Exhibit A hereto, between you and the stockholders, optionees, officers and directors of the Company relating to sales and certain other dispositions of shares of Stock or certain other securities, delivered to you on or before the date hereof, shall be full force and effect on the Closing Date or Additional Closing Date, as the case may be.

(n) Additional Documents. On or prior to the Closing Date or the Additional Closing Date, as the case may be, the Company and the Selling Stockholders shall have furnished to the Representatives such further certificates and documents as the Representatives may reasonably request.

All opinions, letters, certificates and evidence mentioned above or elsewhere in this Agreement shall be deemed to be in compliance with the provisions hereof only if they are in form and substance reasonably satisfactory to counsel for the Underwriters.

9. Indemnification and Contribution.

(a) Indemnification of the Underwriters by the Company. The Company agrees to indemnify and hold harmless each Underwriter, its affiliates, directors and officers and each person, if any, who controls such Underwriter within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, from and against any and all losses, claims, damages and liabilities (including, without limitation, reasonable legal fees and other reasonable expenses incurred in connection with any suit, action or proceeding or any claim asserted, as such fees and expenses are incurred), joint or several, that arise out of, or are based upon, (i) any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement or caused by any omission or alleged omission to state therein a material fact required to be stated therein or necessary in order to make the statements therein, not misleading, or (ii) any untrue statement or alleged untrue statement of a material fact contained in the Prospectus (or any amendment or supplement thereto), any Issuer Free Writing Prospectus, any “issuer information” filed or required to be filed pursuant to Rule 433(d) or any Time of Sale Information (including any Time of Sale Information that has subsequently been amended), or caused by any omission or alleged omission to state therein a material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading, in each case except insofar as such losses, claims, damages or liabilities arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use therein, it being understood and agreed that the only such information furnished by any Underwriter consists of the information described as such in subsection (c) below.

(b) Indemnification of the Underwriters by the Selling Stockholders. Each of the Selling Stockholders severally and not jointly agrees to indemnify and hold harmless each Underwriter, its affiliates, directors and officers and each person, if any, who controls such Underwriter within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act to the same extent as the indemnity set forth in paragraph (a) above, provided, that each Selling Stockholder’s agreement to indemnify and hold harmless hereunder shall only apply insofar as such losses, claims, damages or liabilities arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission to state a material fact made in reliance upon and in conformity with any information furnished by such Selling Stockholder in writing to the Company, relating to such Selling Stockholder expressly for use in the Time of Sale Information, Registration Statement, any Issuer Free Writing Prospectus or the Prospectus (or any amendment or supplement thereto), it being understood and agreed that for the purposes of this agreement, the only information so

furnished by such Selling Stockholder consists of such Selling Stockholder’s Selling Stockholder Information.

(c) Indemnification of the Company and the Selling Stockholders. Each Underwriter agrees, severally and not jointly, to indemnify and hold harmless the Company, its directors, its officers who signed the Registration Statement and each person, if any, who controls the Company within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act and each of the Selling Stockholders to the same extent as the indemnity set forth in paragraph (a) above, but only with respect to any losses, claims, damages or liabilities that arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to such Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in the Registration Statement, the Prospectus (or any amendment or supplement thereto), any Issuer Free Writing Prospectus or any Time of Sale Information, it being understood and agreed upon that the only such information furnished by any Underwriter consists of the following information in the Prospectus furnished on behalf of each Underwriter: the concession and reallowance figures appearing in the third paragraph under the caption “Underwriting,” the information contained in the paragraph describing passive market making under the caption “Underwriting”, [and the following information in the Prospectus furnished on behalf of [insert name of Underwriter][delete bracketed clause if no material relationship is described under the caption “Underwriting”].

(d) Notice and Procedures. If any suit, action, proceeding (including any governmental or regulatory investigation), claim or demand shall be brought or asserted against any person in respect of which indemnification may be sought pursuant to the preceding paragraphs of this Section 9, such person (the “Indemnified Person”) shall promptly notify the person against whom such indemnification may be sought (the “Indemnifying Person”) in writing; provided that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have under the preceding paragraphs of this Section 9 except to the extent that it has been materially prejudiced (through the forfeiture of substantive rights or defenses) by such failure; and provided, further, that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have to an Indemnified Person otherwise than under the preceding paragraphs of this Section 9. If any such proceeding shall be brought or asserted against an Indemnified Person and it shall have notified the Indemnifying Person thereof, the Indemnifying Person shall have the right to participate therein, and if it so elects, to assume the defense thereof (jointly with any other electing Indemnifying Person) with counsel reasonably satisfactory to the Indemnified Person (who shall not, without the consent of the Indemnified Person, be counsel to the Indemnifying Person) and shall pay the reasonable fees and expenses of such counsel related to such proceeding, as incurred. In any such proceeding, any Indemnified Person shall have the right to retain its own counsel, but the fees and expenses of such counsel shall be at the expense of such Indemnified Person unless (i) the Indemnifying Person and the Indemnified Person shall have mutually agreed to the contrary; (ii) the Indemnifying Person has failed within a reasonable time to retain counsel reasonably satisfactory to the Indemnified Person; (iii) the Indemnified Person shall have reasonably concluded that there may be legal defenses available to it that are different from or in addition to those available to the Indemnifying Person; or (iv) the named parties in any such proceeding (including any impleaded parties) include both the Indemnifying Person and the Indemnified Person and representation of both parties by the same counsel would be inappropriate due to actual or potential differing interest between them. It is understood and agreed that the Indemnifying Person shall not, in connection with any proceeding or

related proceeding in the same jurisdiction, be liable for the fees and expenses of more than one separate firm (in addition to any local counsel) for all Indemnified Persons, and that all such fees and expenses shall be paid or reimbursed as they are incurred. Any such separate firm for any Underwriter, its affiliates, directors and officers and any control persons of such Underwriter shall be designated in writing by the Representatives, any such separate firm for the Company, its directors, its officers who signed the Registration Statement and any control persons of the Company shall be designated in writing by the Company and any such separate firm for the Selling Stockholders shall be designated in writing by the Attorneys-in-Fact or any one of them. The Indemnifying Person shall not be liable for any settlement of any proceeding effected without its written consent, but if settled with such consent or if there be a final judgment for the plaintiff, the Indemnifying Person agrees to indemnify each Indemnified Person from and against any loss or liability by reason of such settlement or judgment. Notwithstanding the foregoing sentence, if at any time an Indemnified Person shall have requested that an Indemnifying Person reimburse the Indemnified Person for fees and expenses of counsel as contemplated by this paragraph, the Indemnifying Person shall be liable for any settlement of any proceeding effected without its written consent if (i) such settlement is entered into more than 60 days after receipt by the Indemnifying Person of such request and (ii) the Indemnifying Person shall not have reimbursed the Indemnified Person in accordance with such request prior to the date of such settlement. No Indemnifying Person shall, without the written consent of the Indemnified Person, effect any settlement of any pending or threatened proceeding in respect of which any Indemnified Person is or could have been a party and indemnification could have been sought hereunder by such Indemnified Person, unless such settlement (x) includes an unconditional release of such Indemnified Person, in form and substance reasonably satisfactory to such Indemnified Person, from all liability on claims that are the subject matter of such proceeding and (y) does not include any statement as to or any admission of fault, culpability or a failure to act by or on behalf of any Indemnified Person.

(e) Contribution. If the indemnification provided for in paragraphs (a), (b) and (c) above is unavailable to an Indemnified Person or insufficient in respect of any losses, claims, damages or liabilities referred to therein, then each Indemnifying Person under such paragraph, in lieu of indemnifying such Indemnified Person thereunder, shall contribute to the amount paid or payable by such Indemnified Person as a result of such losses, claims, damages or liabilities (i) in such proportion as is appropriate to reflect the relative benefits received by the Company and the Selling Stockholders, on the one hand, and the Underwriters, on the other, from the offering of the Shares and with the proportion among the Company and the Selling Stockholders to reflect the relative fault of the Company and the Selling Stockholders or (ii) if the allocation provided by clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) but also the relative fault of the Company and the Selling Stockholders, on the one hand, and the Underwriters, on the other, in connection with the statements or omissions that resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations and with the proportion among the Company and the Selling Stockholders to reflect the relative fault of the Company and the Selling Stockholders. The relative benefits received by the Company and the Selling Stockholders, on the one hand, and the Underwriters, on the other, shall be deemed to be in the same respective proportions as the net proceeds (before deducting expenses) received by the Company and the Selling Stockholders from the sale of the Shares and the total underwriting discounts and commissions received by the Underwriters in connection therewith, in each case as set forth in the table on the cover of the Prospectus, bear to the aggregate offering price of the Shares. The relative fault of the Company and the Selling

Stockholders, on the one hand, and the Underwriters, on the other, and among the Company and Selling Stockholders, shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company, the Selling Stockholders or the Underwriters and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

(f) Limitation on Liability. The Company, the Selling Stockholders and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Section 9 were determined by pro rata allocation (even if the Selling Stockholders or the Underwriters were treated as one entity for such purpose) or by any other method of allocation that does not take account of the equitable considerations referred to in paragraph (e) above. The amount paid or payable by an Indemnified Person as a result of the losses, claims, damages and liabilities referred to in paragraph (e) above shall be deemed to include, subject to the limitations set forth above, any legal or other expenses incurred by such Indemnified Person in connection with any such action or claim. Notwithstanding the provisions of this Section 9, in no event shall an Underwriter be required to contribute any amount in excess of the amount by which the total underwriting discounts and commissions received by such Underwriter with respect to the offering of the Shares exceeds the amount of any damages that such Underwriter has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The Underwriters’ obligations to contribute pursuant to this Section 9 are several in proportion to their respective purchase obligations hereunder and not joint.

(g) Non-Exclusive Remedies. The remedies provided for in this Section 9 are not exclusive and shall not limit any rights or remedies which may otherwise be available to any Indemnified Person at law or in equity.

(h) Limitation of Selling Stockholder Liability. The aggregate liability of each Selling Stockholder under such Selling Stockholder’s representations and warranties contained in Section 4 hereof, under the certificates delivered pursuant to Section 8(d)(y) and under the indemnity and contribution agreements contained in this Section 9 shall be limited to an amount equal to the aggregate net proceeds, after deducting underwriting commission and discounts, of the Shares sold by such Selling Stockholder to the Underwriters. The Company acknowledges that nothing herein limits or alters the Company’s obligations to the Selling Stockholders pursuant to the Registration Rights Agreement dated December 13, 2005, including, without limitation, the obligations under Section 2.4 of such agreement.

10. Effectiveness of Agreement. This Agreement shall become effective upon the execution and delivery hereof by the parties hereto.

11. Termination. This Agreement may be terminated in the absolute discretion of the Representatives, by notice to the Company and the Selling Stockholders, if after the execution and delivery of this Agreement and prior to the Closing Date or, in the case of the Option Shares, prior to the Additional Closing Date (i) trading generally shall have been suspended or materially limited on or by any of the NYSE, the American Stock Exchange, the Nasdaq Stock Market, the Chicago

Board Options Exchange, the Chicago Mercantile Exchange or the Chicago Board of Trade; (ii) trading of any securities issued or guaranteed by the Company shall have been suspended on any exchange or in any over-the-counter market; (iii) a general moratorium on commercial banking activities shall have been declared by federal or New York State authorities or a material disruption in commercial banking or securities settlement or clearance services in the United States; or (iv) there shall have occurred any outbreak or escalation of hostilities or any change in financial markets or any calamity or crisis, either within or outside the United States, that, in the judgment of the Representatives, is material and adverse and makes it impracticable or inadvisable to proceed with the offering, sale or delivery of the Shares on the Closing Date or the Additional Closing Date, as the case may be, on the terms and in the manner contemplated by this Agreement, the Time of Sale Information and the Prospectus; or (v) there shall have occurred any other calamity or crisis or any change in financial, political or economic conditions in the United States or elsewhere that, in the judgment of the Representatives, is material and adverse and makes it impracticable or inadvisable to proceed with the offering, sale or delivery of the Shares on the Closing Date or the Additional Closing Date, as the case may be, on the terms and in the manner contemplated by this Agreement, the Time of Sale Information and the Prospectus.

12. Defaulting Underwriter. (a) If, on the Closing Date or the Additional Closing Date, as the case may be, any Underwriter defaults on its obligation to purchase the Shares that it has agreed to purchase hereunder on such date, the non-defaulting Underwriters may in their discretion arrange for the purchase of such Shares by other persons satisfactory to the Company and the Selling Stockholders on the terms contained in this Agreement. If, within 36 hours after any such default by any Underwriter, the non-defaulting Underwriters do not arrange for the purchase of such Shares, then the Company and the Selling Stockholders shall be entitled to a further period of 36 hours within which to procure other persons satisfactory to the non-defaulting Underwriters to purchase such Shares on such terms. If other persons become obligated or agree to purchase the Shares of a defaulting Underwriter, either the non-defaulting Underwriters or the Company and the Selling Stockholders may postpone the Closing Date or the Additional Closing Date, as the case may be, for up to five full business days in order to effect any changes that in the opinion of counsel for the Company, counsel for the Selling Stockholders or counsel for the Underwriters may be necessary in the Registration Statement and the Prospectus or in any other document or arrangement, and the Company agrees to promptly prepare any amendment or supplement to the Registration Statement and the Prospectus that effects any such changes. As used in this Agreement, the term “Underwriter” includes, for all purposes of this Agreement unless the context otherwise requires, any person not listed in Schedule 1 hereto that, pursuant to this Section 12, purchases Shares that a defaulting Underwriter agreed but failed to purchase.

(b) If, after giving effect to any arrangements for the purchase of the Shares of a defaulting Underwriter or Underwriters by the non-defaulting Underwriters, the Company and the Selling Stockholders as provided in paragraph (a) above, the aggregate number of Shares that remain unpurchased on the Closing Date or the Additional Closing Date, as the case may be, does not exceed one-eleventh of the aggregate number of Shares to be purchased on such date, then the Company and the Selling Stockholders shall have the right to require each non-defaulting Underwriter to purchase the number of Shares that such Underwriter agreed to purchase hereunder on such date plus such Underwriter’s pro rata share (based on the number of Shares that such Underwriter agreed to purchase on such date) of the Shares of such defaulting Underwriter or Underwriters for which such arrangements have not been made.

(c) If, after giving effect to any arrangements for the purchase of the Shares of a defaulting Underwriter or Underwriters by the non-defaulting Underwriters, the Company and the Selling Stockholders as provided in paragraph (a) above, the aggregate number of Shares that remain unpurchased on the Closing Date or the Additional Closing Date, as the case may be, exceeds one-eleventh of the aggregate amount of Shares to be purchased on such date, or if the Company and the Selling Stockholders shall not exercise the right described in paragraph (b) above, then this Agreement or, with respect to any Additional Closing Date, the obligation of the Underwriters to purchase Shares on the Additional Closing Date, as the case may be, shall terminate without liability on the part of the non-defaulting Underwriters. Any termination of this Agreement pursuant to this Section 12 shall be without liability on the part of the Company, except that the Company and the Selling Stockholders will continue to be liable for the payment of expenses as set forth in Section 13 hereof and except that the provisions of Section 9 hereof shall not terminate and shall remain in effect.

(d) Nothing contained herein shall relieve a defaulting Underwriter of any liability it may have to the Company, the Selling Stockholders or any non-defaulting Underwriter for damages caused by its default.

13. Payment of Expenses. (a) Whether or not the transactions contemplated by this Agreement are consummated or this Agreement is terminated, the Company will pay or cause to be paid all costs and expenses incident to the performance of their obligations hereunder, including without limitation, (i) the costs incident to the authorization, issuance, sale, preparation and delivery of the Shares and any taxes payable in that connection; (ii) the costs incident to the preparation, printing and filing under the Securities Act of the Registration Statement, the Preliminary Prospectus, any Issuer Free Writing Prospectus, any Time of Sale Information and the Prospectus (including all exhibits, amendments and supplements thereto) and the distribution thereof; (iii) the costs of reproducing and distributing this Agreement; (iv) the fees and expenses of the Company’s counsel and independent accountants; (v) the reasonable fees and expenses incurred in connection with the registration or qualification and determination of eligibility for investment of the Shares under the laws of such jurisdictions as the Representatives may designate and the preparation, printing and distribution of a Blue Sky Memorandum (including the related fees and expenses of counsel for the Underwriters); (vi) the cost of preparing stock certificates; (vii) the costs and charges of any transfer agent and any registrar; (viii) all reasonable expenses (including the fees and expenses of Underwriters’ counsel) and application fees incurred in connection with any filing with, and clearance of the offering by, the FINRA; (ix) all expenses incurred by the Company in connection with any “road show” presentation to potential investors including the pro-rata (based on the number of passengers from the Company and the Underwriters) cost of any aircraft chartered in connection with the road show; and (x) all expenses and application fees related to the listing of the Shares on the NYSE. It is understood, however, that except as provided in this Section 13 or Section 9 hereof, the underwriters will pay all of their own costs and expenses, including the fees of their counsel, stock transfer taxes on the resale of any of the Shares owned by them, any advertising expenses connected with any offers they may make and all travel, lodging and other expenses of the Underwriters or any of their employees incurred by them in connection with the road show including the pro-rata (based on the number of passengers from the Company and the Underwriters) cost of any aircraft chartered in connection with the road show. It is further understood that the Selling Stockholders will pay all of their own costs and expenses, including the fees of their

respective counsel and stock transfer taxes on the sale of their shares, except as provided in any separate agreement relating to the allocation of payment of expenses between the Company, on the one hand, and the Selling Stockholders, on the other hand.

(b) If (i) this Agreement is terminated pursuant to Section 11(ii), (ii) the Company or the Selling Stockholders for any reason (other than as a result of a termination pursuant to clauses (i), (iii), (iv) or (v) of Section 11 or Section 12) fail to tender the Shares for delivery to the Underwriters or (iii) the Underwriters decline to purchase the Shares for any reason permitted under this Agreement, the Company (and, if one or more Selling Stockholders fail to tender their Shares for delivery to the Underwriters or if this Agreement is terminated as a result of such Selling Stockholder’s or Selling Stockholders’ failure to perform its or their obligations under Section 8 hereof, in each case without any fault on the part of the Company, the Underwriters or the other Selling Stockholders, each of those Selling Stockholders) agrees to reimburse the Underwriters for all out-of-pocket costs and expenses (including the fees and expenses of their counsel) reasonably incurred by the Underwriters in connection with this Agreement and the offering contemplated hereby; provided that, if a Selling Stockholder fails to tender its Shares for delivery to the Underwriters (without any fault on the part of the Company, the Underwriters or the other Selling Stockholders), such Selling Stockholder agrees to reimburse the Underwriters only for such out-of-pocket costs and expenses (including the fees and expenses of their counsel) reasonably incurred by the Underwriters in connection with such Selling Stockholder’s failure to deliver its Shares.

(c) This Section 13 shall not affect any separate agreement relating to the allocation of payment of expenses between the Company, on the one hand, and the Selling Stockholders, on the other hand.

14. Persons Entitled to Benefit of Agreement. This Agreement shall inure to the benefit of and be binding upon the parties hereto and their respective successors and the officers and directors and any controlling persons referred to in Section 9 hereof. Nothing in this Agreement is intended or shall be construed to give any other person any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision contained herein. No purchaser of Shares from any Underwriter shall be deemed to be a successor merely by reason of such purchase.

15. Survival. The respective indemnities, rights of contribution, representations, warranties and agreements of the Company, the Selling Stockholders and the Underwriters contained in this Agreement or made by or on behalf of the Company, the Selling Stockholders or the Underwriters pursuant to this Agreement or any certificate delivered pursuant hereto shall survive the delivery of and payment for the Shares and shall remain in full force and effect, regardless of any termination of this Agreement or any investigation made by or on behalf of the Company, the Selling Stockholders or the Underwriters.

16. Certain Defined Terms. For purposes of this Agreement, (a) except where otherwise expressly provided, the term “affiliate” has the meaning set forth in Rule 405 under the Securities Act; (b) the term “business day” means any day other than a day on which banks are permitted or required to be closed in New York City; (c) the term “subsidiary” has the meaning set forth in Rule 405 under the Securities Act; and (d) the term “significant subsidiary” has the meaning set forth in Rule 1-02 of Regulation S-X under the Exchange Act.

17. Miscellaneous.

(a) Authority of the Representatives. Any action by the Underwriters hereunder may be taken by the Representatives on behalf of the Underwriters, and any such action taken by the Representatives shall be binding upon the Underwriters.

(b) Notices. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given if mailed or transmitted and confirmed by any standard form of telecommunication. Notices to the Underwriters shall be given to the Representatives c/o X.X. Xxxxxx Securities Inc., 000 Xxxx Xxxxxx, Xxx Xxxx, Xxx Xxxx 00000 (fax: (000) 000-0000); Attention: Equity Syndicate Desk, with a copy to Xxxxx X. Xxxxxx III, Esq., Fenwick & West LLP, 000 Xxxxxxxxxx Xxxxxx, Xxxxxxxx Xxxx, Xxxxxxxxxx 00000 (fax: (000) 000-0000). Notices to the Company shall be given to it at Xxxxx Xxxx, SolarWinds Inc., 0000 Xxxxx XxXxx Xxxxxxxxxx, Xxxxxxxx Xxx, Xxxxxx, Xxxxx 00000 (fax: (000) 000-0000); with a copy to Xxxx X. Xxxxxx, Esq., Xxxxxx Xxxxxxx Xxxxxxxx & Xxxxxx, Professional Corporation, 900 South Capital of Texas Highway, Las Cimas IV, Xxxxx Xxxxx, Xxxxxx, Xxxxx 00000-0000 (fax: (000) 000-0000). Notices to the Selling Stockholders shall be given as set forth under the name of such Selling Stockholder on Schedule 2 hereto.

(c) Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of New York.

(d) Counterparts. This Agreement may be signed in counterparts (which may include counterparts delivered by any standard form of telecommunication), each of which shall be an original and all of which together shall constitute one and the same instrument.

(e) Amendments or Waivers. No amendment or waiver of any provision of this Agreement, nor any consent or approval to any departure therefrom, shall in any event be effective unless the same shall be in writing and signed by the parties hereto.

(f) Headings. The headings herein are included for convenience of reference only and are not intended to be part of, or to affect the meaning or interpretation of, this Agreement.

If the foregoing is in accordance with your understanding, please indicate your acceptance of this Agreement by signing in the space provided below.


Very truly yours, SOLARWINDS, INC.

By:
		Title:

SELLING STOCKHOLDERS

By:
		Xxxxxxx X. Xxxxxxx

By:
		Xxxxx X. Xxxxxxxx

As Attorneys-in-Fact acting on behalf of each of the Selling Stockholders named in Schedule 2 to this Agreement.

Accepted: May 19, 2009

X.X. XXXXXX SECURITIES INC.

XXXXXXX, XXXXX & CO.

XXXXXX XXXXXXX & CO. INCORPORATED

For themselves and on behalf of the several

Underwriters listed in Schedule 1 hereto.


X.X. XXXXXX SECURITIES INC.

By
		Authorized Signatory

XXXXXXX, XXXXX & CO.

By
		Authorized Signatory

XXXXXX XXXXXXX & CO. INCORPORATED

By
		Authorized Signatory

Schedule 1


Underwriter	Number of Underwritten Shares	Number of Optional Shares to be Purchased if Maximum Option Exercised
X.X. Xxxxxx Securities Inc.
Xxxxxxx, Xxxxx & Co.
Xxxxxx Xxxxxxx & Co. Incorporated
Xxxxxxxx & Company, Inc.
Xxxxxx Xxxxxx Partners LLC
Ladenburg Xxxxxxxx & Co Inc.

Total

Schedule 2


Selling Stockholders	Address for Notices	Attorneys-in-Fact	Number of Underwritten Shares

Xxxx Capital Venture Integral Investors, LLC	000 Xxxxxxxxxx Xxxxxx Xxxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

BCV Coinvest SW, L.P.	c/o Auda Software, LLC 000 Xxxxx Xxxxxx, 00^xx Xxxxx Xxx Xxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Insight Venture Partners V, L.P.	000 Xxxxx Xxxxxx, 0^xx Xxxxx Xxx Xxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Insight Venture Partners (Cayman) IV, L.P.	000 Xxxxx Xxxxxx, 0^xx Xxxxx Xxx Xxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Insight Venture Partners (Cayman) V, L.P.	000 Xxxxx Xxxxxx, 0^xx Xxxxx Xxx Xxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Insight Venture Partners V Coinvestment Fund, L.P.	000 Xxxxx Xxxxxx, 0^xx Xxxxx Xxx Xxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Insight Venture Partners IV (Co-Investors), L.P.	000 Xxxxx Xxxxxx, 0^xx Xxxxx Xxx Xxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Insight Venture Partners V (Employee Co-Investors), L.P.	000 Xxxxx Xxxxxx, 0^xx Xxxxx Xxx Xxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Insight Venture Partners IV (Fund B), L.P.	000 Xxxxx Xxxxxx, 0^xx Xxxxx Xxx Xxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Insight Venture Partners IV, L.P.	000 Xxxxx Xxxxxx, 0^xx Xxxxx Xxx Xxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Xxxxx X. Xxxxx	13339 E. 000 Xxxxxx, X. Xxxxxx Xxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Xxxxx Management LLC	13339 E. 000 Xxxxxx, X. Xxxxxx Xxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Xxxxxx Ventures IX, L.P.	000 Xxxx 0^xx Xxxxxx, Xxxxx 0000 Xxxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Xxx X. Xxxxxx as Trustee of 25PS1213 Trust u/a/d August 1, 2008	c/o SolarWinds, Inc. 0000 Xxxxx XxXxx Xxxxx Xxxxxxxx Xxx Xxxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

MSB Asset Management, LP	c/o SolarWinds, Inc. 0000 Xxxxx XxXxx Xxxxx Xxxxxxxx Xxx Xxxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Xxxxxxx X. Xxxxxxx	c/o SolarWinds, Inc. 0000 Xxxxx XxXxx Xxxxx Xxxxxxxx Xxx Xxxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx



X. Xxxxxx Kalsu	c/o SolarWinds, Inc. 0000 Xxxxx XxXxx Xxxxx Xxxxxxxx Xxx Xxxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Xxxxx Xxxxx	c/o SolarWinds, Inc. 0000 Xxxxx XxXxx Xxxxx Xxxxxxxx Xxx Xxxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Xxxx X. Xxxxxxxx	c/o SolarWinds, Inc. 0000 Xxxxx XxXxx Xxxxx Xxxxxxxx Xxx Xxxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Xxxxx X. Xxxx	c/o SolarWinds, Inc. 0000 Xxxxx XxXxx Xxxxx Xxxxxxxx Xxx Xxxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Xxxx Xxxxxxxxx	c/o SolarWinds, Inc. 0000 Xxxxx XxXxx Xxxxx Xxxxxxxx Xxx Xxxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Xxxxx X. Xxxxxxxx	c/o SolarWinds, Inc. 0000 Xxxxx XxXxx Xxxxx Xxxxxxxx Xxx Xxxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Xxxxx X. Xxx Xxxx	c/o SolarWinds, Inc. 0000 Xxxxx XxXxx Xxxxx Xxxxxxxx Xxx Xxxxxx, XX 00000	Xxxxxxx X. Xxxxxxx Xxxxx X. Xxxxxxxx

Schedule 3

List of Significant Subsidiaries of the Company

SolarWinds Software Europe Limited (Irish)

Annex A-1

Form of WSGR Legal Opinion

1. The Company has been duly incorporated, is validly existing as a corporation in good standing under the laws of the State of Delaware, has the corporate power and authority to own its property and to conduct its business as described in the Prospectus and the Company is duly qualified to transact business and is in good standing in the States of New Jersey, Oklahoma and Texas.

2. SolarWinds Worldwide, LLC (the “LLC Subsidiary”) has been duly formed, is validly existing as a limited liability company in good standing under the laws of the State of Delaware and has the power and authority to own its property and to conduct its business as described in the Prospectus and the LLC Subsidiary is duly qualified to transact business and is in good standing in the States of Oklahoma and Texas.

3. The authorized capital stock of the Company as of March 31, 2009 was as set forth in each of the Registration Statement, the Time of Sale Information and the Prospectus in the “Actual” column under the caption “Capitalization”.

4. The shares of Common Stock outstanding prior to the issuance of the Shares to be sold by the Company (including, but not limited to, the Shares to be sold by the Selling Stockholders) have been duly authorized and are validly issued, fully paid and non-assessable; and the capital stock of the Company conforms in all material respects to the description thereof contained in the Registration Statement, the Time of Sale Information and the Prospectus.

5. All of the issued shares of capital stock of each domestic subsidiary have been duly and validly authorized and issued, are fully paid and non-assessable and are owned of record by the Company.

6. Based solely on oral confirmation of such matters from a representative of the Staff of the SEC and information contained on the SEC’s XXXXX website, the Registration Statement was declared effective under the Securities Act as of : EDT on May 19, 2009 and each of the Preliminary Prospectus included in the Time of Sale Information (if required to be filed) and the Prospectus was filed with the Commission pursuant to Rule 424(a) and Rule 424(b)( ), respectively, under the Securities Act on May 1, 2009 and May 19, 2009, respectively; and, to our knowledge based solely on oral confirmation from a representative of the Staff of the SEC, no order suspending the effectiveness of the Registration Statement has been issued and no proceeding for that purpose or pursuant to Section 8A of the Securities Act against the Company in connection with the offering is pending.

7. The Shares to be issued and sold by the Company have been duly authorized and, when issued, delivered and paid for in accordance with the terms of the Underwriting Agreement, will be validly issued, fully paid and non-assessable, and the issuance of such Shares will not be subject to any contractual written preemptive rights pursuant to the Company’s Certificate of Incorporation or Bylaws, pursuant to any agreement or instrument binding upon the Company or any

domestic subsidiary that is filed as an exhibit to the Registration Statement or listed in Exhibit A hereto (the “Contracts”), or, to our knowledge, pursuant to any other written agreement or instrument binding upon the Company.

8. The Company has the corporate power and authority to execute and deliver this Agreement and to perform its obligations hereunder; and all action required to be taken for the due and proper authorization, execution and delivery by the Company of this Agreement and the consummation by the Company of the transactions contemplated hereby has been taken.

9. This Agreement has been duly authorized, executed and delivered by the Company.

10. The execution and delivery by the Company of this Agreement, and the performance by the Company of its obligations hereunder, do not violate any provision of the Company’s or any domestic subsidiary’s Certificate of Incorporation or Bylaws, the Amended and Restated Certificate of Formation of the LLC Subsidiary or any provision of applicable federal or Texas law, rule or regulation or any provision of the Delaware General Corporation Law with respect to the Company or the Delaware Limited Liability Company Act with respect to the LLC Subsidiary, in each case which is known to us to be customarily applicable to transactions of this nature, or any judgment, order or decree of any court or arbitrator or government or regulatory authority listed on Exhibit A hereto (the “Reviewed Judgments”), and do not violate or cause a breach or default under any Contract, and no consent, approval, authorization or order of, or qualification with, any governmental body or agency or court is required on the part of the Company or any domestic subsidiary for the performance by the Company of its obligations under the Underwriting Agreement, except for the registration of the Shares under the Securities Act, and the Exchange Act and such consents, approvals, authorizations, orders and registrations or qualifications as may be required under applicable state securities laws or applicable FINRA rules and regulations in connection with the purchase and distribution of the Shares by the Underwriters.

11. The statements relating to legal matters, documents or proceedings included in (A) the Registration Statement, the Time of Sale Information and the Prospectus under the captions “Executive Compensation – Employment and Consulting Agreements,” “Executive Compensation – Potential Payments upon Termination or Change of Control,” “Executive Compensation – Arrangements with Current and Former Executive Officers,” “Executive Compensation – Employee Benefit Plans,” “Executive Compensation – Limitation of Liability and Indemnification of Directors and Officers,” “Certain Relationships and Related Party Transactions,” “Material United States Federal Income Tax Consequences to Non-U.S. Holders,” and “Description of Capital Stock” and footnote (1) to the table under the caption “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Contractual Obligations and Commitments,” (B) the Registration Statement, Time of Sale Information and the Prospectus under the caption “Underwriting” and (C) the Registration Statement in Items 14 and 15, in each case fairly summarize in all material respects such matters, documents or proceedings. To our knowledge, there are no contracts or documents of a character required to be filed as exhibits to the Registration Statement which are not filed as required.

12. The Company is not, and after giving effect to the offering and sale of the Shares and the application of the proceeds thereof as described in the Prospectus will not be, required to register as an “investment company” as such term is defined in the Investment Company Act of 1940, as amended.

13. (i) The Reincorporation was duly authorized by all necessary action of the stockholders and Board of Directors of the Company; (ii) the Company had all necessary corporate power to execute and deliver any agreements, actions, and/or filings necessary to complete the Reincorporation; (iii) the Reincorporation did not give rise to a right of termination by a counterparty to any Contract; (iv) the consummation of the Reincorporation did not conflict with, or result in any violation of, any federal or Texas law, regulation or rule or of the Delaware General Corporation Law or, to our knowledge, any Reviewed Judgment; and (v) the issuance of capital stock by the Company in the Reincorporation was exempt from registration under the Securities Act.

In addition, we have participated in conferences with certain officers and other representatives of the Company, its litigation counsel, its patent counsel, the Representatives, counsel for the Underwriters and the independent registered public accountants of the Company, at which conferences the contents of the Registration Statement, the Prospectus, the Time of Sale Information, any amendment or supplement thereto and related matters were reviewed and discussed. Although we do not assume any responsibility for the accuracy, completeness or fairness of the statements contained in the Registration Statement, the Prospectus or the Time of Sale Information other than as set forth in paragraph 11 above, no facts have come to our attention in the course of such review and discussion that have caused us to believe that,

(i) the Registration Statement (including the information, if any, deemed to be included therein pursuant to Rule 430A, 430B or 430C at the time the Registration Statement became effective) at the time it became effective contained an untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein not misleading (other than the financial statements and related schedules and the financial and statistical data derived therefrom, as to which we express no belief),

(ii) the Time of Sale Information, as of the date of this Agreement or as of the date hereof, contained an untrue statement of a material fact or omitted to state a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading (other than the financial statements and related schedules and the financial and statistical data derived therefrom, as to which we express no belief), or

(iii) the Prospectus, or any amendment or supplement thereto, as of its date or as of the date hereof, contained an untrue statement of material fact or omitted to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading (other than the financial statements and related schedules and the financial and statistical data derived therefrom, as to which we express no belief).

In addition, we confirm to you that the Registration Statement, at the time it became effective, the Time of Sale Information, as of the date of this Agreement, and the Prospectus, at the time it was transmitted for filing with the SEC pursuant to Rule 424(b) of the Rules and Regulations (other than the financial statements and related schedules and the financial and statistical data derived therefrom, as to which we express no belief), appeared on their face to be appropriately responsive, in all material respects relevant to the offering of the Shares, to the requirements of the Securities Act and the applicable Rules and Regulations.

We do not know of any legal or governmental proceedings pending or overtly threatened to which the Company or any domestic subsidiary is a party or to which any of the properties of the Company or any domestic subsidiary is subject that are required to be described in the Registration Statement, Time of Sale Information or the Prospectus and are not so described. In making the foregoing statements, we note that we have not conducted a docket search in any jurisdiction with respect to any legal or governmental proceedings that may be pending against the Company, any domestic subsidiary or any of their respective officers or directors.

Annex A-2

Form of Opinion of Counsel For

The Selling Stockholders

(a) The Underwriting Agreement has been duly authorized, executed and delivered by or on behalf of each of the Selling Stockholders.

(b) A Power of Attorney and a Custody Agreement have been duly authorized, executed and delivered by each Selling Stockholder and constitute valid and binding agreements of each Selling Stockholder in accordance with their terms.

(c) Each Selling Stockholder is the record, beneficial and lawful owner of all of the Shares to be sold by such Selling Stockholder and has valid and marketable title to such Shares, and upon delivery of and payment for the Shares, the Underwriters will acquire valid and marketable title to the shares, free and clear of any mortgage, pledge, security interest, lien, claim or other encumbrance or restriction on transferability or any adverse claim.

(d) The sale of the Shares and the execution and delivery by the Selling Stockholder of, and the performance by the Selling Stockholder of its obligations under, the Underwriting Agreement, and the consummation of the transactions contemplated therein or by the Time of Sale Information and the Prospectus, (i) have been duly authorized on the part of each of the Selling Stockholders, and (ii) will not conflict with or result in a breach of any of the terms or provisions of, or constitute a default under, any indenture, mortgage, deed of trust, loan agreement or other material agreement or instrument to which any Selling Stockholder is a party or by which any Selling Stockholder is bound or to which any of the property or assets of any Selling Stockholder is subject, nor will any such action result in any violation of the provisions of the charter or by-laws or similar organizational documents of any Selling Stockholder or any applicable law or statute or any order, rule or regulation of any court or governmental agency or body having jurisdiction over such Selling Stockholder or any of its properties; and no consent, approval, authorization, order, registration or qualification of or with any such court or governmental agency or body is required for the sale of the Shares or the consummation by the Selling Stockholders of the transactions contemplated by the Underwriting Agreement or by the Time of Sale Information and the Prospectus, except such consents, approvals, authorizations, registrations or qualifications as have been obtained under the Securities Act and as may be required under state securities or Blue Sky laws in connection with the purchase and distribution of the Shares by the Underwriters.

The opinion of counsel described above shall be rendered to the Underwriters at the request of the Selling Stockholders and shall so state therein.

Annex A-3

Opinion of Foreign Subsidiary Counsel

(a) The subsidiary has been duly organized and is validly existing and in good standing under the laws of its jurisdiction of organization, is duly qualified to do business and is in good standing in each jurisdiction in which its ownership or lease of property or the conduct of its business requires such qualification, and has all power and authority necessary to own or hold its properties and to conduct the business in which it is engaged, except where the failure to be so qualified or have such power or authority would not, individually or in the aggregate, have a Material Adverse Effect.

(b) All the outstanding shares of capital stock or other equity interests of the subsidiary owned, directly or indirectly, by the Company have been duly and validly authorized and issued and are fully paid and non-assessable.

(c) The execution, delivery and performance by the Company of this Agreement, the compliance by the Company with the terms hereof, the issuance and sale of the Shares being delivered on the Closing Date or the Additional Closing Date, as the case may be, and the consummation of the transactions contemplated by this Agreement or the Time of Sale Information and the Prospectus will not (i) conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, or result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of the subsidiary pursuant to any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the subsidiary is a party or by which the subsidiary is bound or to which any of its property or assets is subject, (ii) result in any violation of the provisions of its charter or by-laws or similar organizational documents of the subsidiary or (iii) result in the violation of any law or statute or any judgment, order or regulation of any court or arbitrator or governmental or regulatory authority except, in the case of clauses (i) and (iii) above, for such conflict, breach, violation or default that would not, individually or in the aggregate, have a Material Adverse Effect.

(d) To the best knowledge of such counsel, there are no legal, governmental or regulatory investigations, actions, suits or proceedings pending to which the subsidiary is or may be a party or to which any property of the subsidiary is or may be the subject that, individually or in the aggregate, if determined adversely to the subsidiary, could reasonably be expected to have a Material Adverse Effect; and to the best knowledge of such counsel, no such investigations, actions, suits or proceedings are threatened or contemplated by any governmental or regulatory authority or threatened by others.

Annex B

a.	Time of Sale Information

[b.	Pricing Information Provided Orally by Underwriters] [delete b. if pricing information is provided in writing]

[set out key information included in script that will be used by underwriters to confirm sales]

Annex C

SOLARWINDS INC.

Pricing Term Sheet

[TO COME]

Exhibit A

FORM OF LOCK-UP AGREEMENT

, 2009

X.X. XXXXXX SECURITIES INC.

XXXXXXX, SACHS & CO.

XXXXXX XXXXXXX & CO. INCORPORATED

As Representatives of the several

Underwriters listed in Schedule 1 to the

Underwriting Agreement referred to below

c/o X.X. Xxxxxx Securities Inc.

000 Xxxx Xxxxxx

Xxx Xxxx, XX 00000

Re:

SolarWinds, Inc. – Public Offering

Ladies and Gentlemen:

The undersigned understands that you, as Representatives of the several Underwriters, propose to enter into an Underwriting Agreement (the “Underwriting Agreement”) with SolarWinds, Inc., a Delaware corporation (the “Company”), and the Selling Stockholders listed on Schedule 2 to the Underwriting Agreement, providing for the public offering (the “Public Offering”), by the several Underwriters named in Schedule 1 to the Underwriting Agreement (the “Underwriters”), of common stock of the Company (the “Securities”). Capitalized terms used herein and not otherwise defined shall have the meanings set forth in the Underwriting Agreement.

In consideration of the Underwriters’ agreement to purchase and make the Public Offering of the Securities, and for other good and valuable consideration receipt of which is hereby acknowledged, the undersigned hereby agrees that, without the prior written consent of X.X. Xxxxxx Securities Inc., Xxxxxxx, Sachs & Co. and Xxxxxx Xxxxxxx & Co. Incorporated on behalf of the Underwriters, the undersigned will not, from the date hereof through the period ending 180 days after the date of the prospectus relating to the Public Offering (the “Prospectus”), (1) offer, pledge, publicly announce the intention to sell, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, or otherwise transfer or dispose of, directly or indirectly, any shares of Common Stock, $0.001 per share par value, of the Company (the “Common Stock”) or any securities convertible into or exercisable or exchangeable for Common Stock (including without limitation, Common Stock which may be deemed to be beneficially owned by the undersigned in accordance with the rules and regulations of the Securities and Exchange Commission and securities which may be issued upon exercise of a stock option or warrant) or (2) enter into any swap or other agreement that transfers, in whole or in part, any of the economic consequences of ownership of the Common Stock, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of Common Stock or such other securities, in cash or otherwise.

The foregoing sentence shall not apply to transactions relating to:

(a) shares of Common Stock or other securities acquired in open market transactions after the completion of the Public Offering, provided that no filing under Section 16(a) of the Securities

Exchange Act of 1934, as amended (the “Exchange Act”), shall be required or shall be voluntarily made in connection with subsequent sales of Common Stock or other securities acquired in such open market transactions;

(b) shares of Common Stock sold by the undersigned to the Underwriters in the Public Offering;

(c) transfers of shares of Common Stock or any securities convertible into or exercisable or exchangeable for Common Stock (i) to an immediate family member or a trust formed for the benefit of an immediate family member, (ii) by bona fide gift, will or intestacy, (iii) if the undersigned is a corporation, partnership or other business entity (A) to another corporation, partnership or other business entity that is a controlled or managed affiliate of the undersigned or (B) as part of a disposition, transfer or distribution without consideration by the undersigned to its equity holders or (iv) if the undersigned is a trust, to a trustor or beneficiary of the trust, provided that, in the case of any transfer or distribution pursuant to this clause (c), it shall be a condition of transfer or distribution that there shall be no disposition for value, each transferee, donee or distributee shall sign and deliver a lock-up letter substantially in the form of this Letter Agreement and no filing under Section 16(a) of the Exchange Act reporting a reduction in beneficial ownership of shares of Common Stock shall be required or shall be made voluntarily during the 180-day restricted period; or

(d) in connection with the exercise of options to purchase shares of Common Stock for purposes of exercising such options pursuant to employee benefit plans disclosed under “Management – Employee Benefit Plans” in the Prospectus; or

(e) entering into a written plan meeting the requirements of Rule 10b-5-1 under the Exchange Act, provided that no sales of the Company’s securities shall occur under such plan, and no public disclosure of any such action shall be required or shall be voluntarily made by any person during the 180-day restrictive period.

(f) the conversion of the outstanding preferred stock of the Company into common stock of the Company in connection with the Public Offering.

(g) the sale of securities, in a registered public offering to which X.X. Xxxxxx Securities Inc., Xxxxxxx Sachs & Co. and Xxxxxx Xxxxxxx & Co. Incorporated have consented on behalf of the Underwriters, on exercise of so-called piggyback registration rights pursuant to Section 2.2.1 of the Registration Rights Agreement dated as of December 13, 2005 among the Company and the stockholders named therein (“Section 2.2.1”), subject to the underwriters’ rights of full cutback contained in said agreement.

For purposes of this paragraph, “immediate family” means any relationship by blood, marriage, domestic partnership or adoption, no more remote than a first cousin.

In addition, the undersigned agrees that, without the prior written consent of X.X. Xxxxxx Securities Inc., Xxxxxxx, Xxxxx & Co. and Xxxxxx Xxxxxxx & Co. Incorporated on behalf of the Underwriters, it will not, during the period ending 180 days after the date of the Prospectus, make any demand for or exercise any right with respect to, the registration of any shares of Common Stock or any security convertible into or exercisable or exchangeable for Common Stock (other than the exercise of so-called piggyback registration rights pursuant to Section 2.2.1 in connection with a registered public offering to which X.X. Xxxxxx Securities Inc., Xxxxxxx Xxxxx & Co. and Xxxxxx Xxxxxxx & Co. Incorporated have consented on behalf of the Underwriters). Notwithstanding the foregoing, if (1)

during the last 17 days of the 180-day restricted period, the Company issues an earnings release or material news or a material event relating to the Company occurs; or (2) prior to the expiration of the 180-day restricted period, the Company announces that it will release earnings results during the 16-day period beginning on the last day of the 180-day period, the restrictions imposed by this Letter Agreement shall continue to apply until the expiration of the 18-day period beginning on the issuance of the earnings release or the occurrence of the material news or material event; provided, however, that if none of the Representatives publishes or otherwise distributes a research report or makes a public appearance concerning the Company within three trading days of the announcement of such material news or material event, the extension of the 180-day restricted period related to such material news or material event (but not related to any other material news or material event) will be only until the later of (i) the last day of the initial 180-day restricted period and (ii) the third trading day after such announcement.

In furtherance of the foregoing, the Company, and any duly appointed transfer agent for the registration or transfer of the securities described herein, are hereby authorized to decline to make any transfer of securities if such transfer would constitute a violation or breach of this Letter Agreement.

The undersigned hereby represents and warrants that the undersigned has full power and authority to enter into this Letter Agreement. All authority herein conferred or agreed to be conferred and any obligations of the undersigned shall be binding upon the successors, assigns, heirs or personal representatives of the undersigned.

The undersigned understands that the Underwriters are entering into the Underwriting Agreement and proceeding with the Public Offering in reliance upon this Letter Agreement.

Notwithstanding anything to the contrary contained herein, this Letter Agreement will terminate and the undersigned will be released from all of its obligations hereunder if (i) the closing of the Public Offering shall not have occurred on or before November 1, 2009, (ii) the Company files an application to withdraw, and the Securities and Exchange Commission consents to the withdrawal of, the registration statement related to the Public Offering, (iii) the Company deregisters all of the shares covered by the registration statement related to the Public Offering, (iv) the Underwriting Agreement is executed but is terminated (other than the provisions thereof which survive termination) prior to payment for and delivery of the Common Stock to be sold thereunder or (v) X.X. Xxxxxx Securities Inc., Xxxxxxx Sachs & Co. and Xxxxxx Xxxxxxx & Co. Incorporated, on behalf of the Underwriters, advising the Company, or the Company advising the Underwriters, in writing, prior to the execution of the Underwriting Agreement, that they have determined not to proceed with the Public Offering.

This Letter Agreement shall be governed by and construed in accordance with the laws of the State of New York, without regard to the conflict of laws principles thereof.

Very truly yours,

«STOCKHOLDER»

Name: «Name»

Title: «Title»

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SOLARWINDS, INC. Shares of Common Stock Underwriting Agreement

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