AMENDMENT NO. 1 MASTER ADMINISTRATIVE SERVICES AGREEMENT The Master Administrative Services Agreement (the "Agreement"), dated February 28, 1998, by and between AIM Investment Securities Funds, a Delaware business trust, and A I M Advisors, Inc., a...

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                                                            EXHIBIT 9(a)(4)(ii)

                                AMENDMENT NO. 1
                    MASTER ADMINISTRATIVE SERVICES AGREEMENT


         The Master Administrative Services Agreement (the "Agreement"), dated
February 28, 1998, by and between AIM Investment Securities Funds, a Delaware
business trust, and A I M Advisors, Inc., a Delaware corporation, is hereby
amended as follows:

         Appendix A to the Agreement is hereby deleted in its entirety and
replaced with the following:

                        "AIM INVESTMENT SECURITIES FUNDS
             APPENDIX A TO MASTER ADMINISTRATIVE SERVICES AGREEMENT


AIM Limited Maturity Treasury Fund

AIM High Yield Fund II"


         All other terms and provisions of the Agreement not amended herein
shall remain in full force and effect.


Dated:  September 28, 1998


                                      AIM INVESTMENT SECURITIES FUNDS


Attest:   /s/ XXXXXX X. XXXXX         By:   /s/ XXXXXX X. XXXXXX
       ----------------------------      ----------------------------------
       Assistant Secretary               President



(SEAL)

                                      A I M ADVISORS, INC.



Attest:   /s/ XXXXXX X. XXXXX         By:   /s/ XXXXXX X. XXXXXX
       ----------------------------      ----------------------------------
       Assistant Secretary               President



(SEAL)