AGREEMENT JOINT FILING OF SCHEDULE 13G
EXHIBIT A
AGREEMENT
JOINT FILING OF SCHEDULE 13G
The undersigned hereby agree to jointly prepare and file with regulatory authorities a
Schedule 13G and any future amendments thereto reporting each of the undersigned’s ownership of
securities, and hereby affirm that such Schedule 13G is being filed on behalf of each of the
undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities
Exchange Act of 1934. The undersigned acknowledge that each shall be responsible for the timely
filing of such amendments, and for the completeness and accuracy of the information concerning him
or it contained therein, but shall not be responsible for the completeness and accuracy of the
information concerning the other, except to the extent that he or it knows or has reason to believe
that such information if inaccurate.
Dated: January 15, 2008
| S Squared Technology, LLC | ||||||
| By: | /s/ Xxxxxxx X. Xxxxxxxxx | |||||
| Xxxxxxx X. Xxxxxxxxx | ||||||
| President | ||||||
| S Squared Technology Partners, L.P. | ||||||
| By: | /s/ Xxxxxxx X. Xxxxxxxxx | |||||
| Xxxxxxx X. Xxxxxxxxx President |
||||||
| /s/ Xxxxxxx X. Xxxxxxxxx | ||||||
| Xxxxxxx X. Xxxxxxxxx | ||||||
| /s/ Xxxxxxx X. Xxxxxxxxx | ||||||
| Xxxxxxx X. Xxxxxxxxx | ||||||
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