EXHIBIT (8)(a)(iii) AMENDMENT NO. 5 PARTICIPATION AGREEMENT The Participation Agreement (the "Agreement"), dated June 1, 1998, by and among AIM Variable Insurance Funds, Inc., a Maryland corporation, A I M Distributors, Inc., a Delaware Corporation, American General Life Insurance Company ("Life Company"), a Texas Life Insurance Company and American General Securities Incorporated ("AGSI"), and collectively (the "Parties"), is hereby amended as follows. All capitalized terms not otherwise defined in this Amendment, shall have the same meaning as described in the Agreement. WHEREAS, the Parties desire to amend the Agreement to add to Schedule A of the Agreement the contracts of the Life Company relating to the Life Company's Platinum Investor PLUS Flexible Premium Variable Life Insurance Policy, Form No. 02600; NOW, THEREFORE, in consideration of their mutual promises, the Parties agree as follows: 1. Schedule A of the Agreement is hereby deleted in its entirety and replaced with the following: 2. Except as amended herein, the Agreement is hereby ratified and confirmed in all respects. Page 1 of 4 SCHEDULE A FUNDS AVAILABLE UNDER SEPARATE ACCOUNTS UTILIZING SOME OR POLICIES/CONTRACTS FUNDED BY THE POLICIES ALL OF THE FUNDS THE SEPARATE ACCOUNTS - ----------------------------------------------------------------------------------------------------------------------------- AIM V.I. International Growth Fund American General Life Insurance Company . Platinum Investor I Flexible Premium Variable AIM V.I. Premier Equity Fund Separate Account VL-R Established: May Life Insurance Policy 1, 1997 - Policy Form No. 97600 . Platinum Investor II Flexible Premium Variable Life Insurance Policy - Policy Form No. 97610 . Corporate America - Variable Flexible Premium Variable Life Insurance - Policy Form No. 99301 . Platinum Investor Survivor Last Survivor Flexible Premium Variable Life Insurance Policy - Policy Form No. 99206 . Platinum Investor Survivor II Last Survivor Flexible Premium Variable Life Insurance Policy - Policy Form No. 01206 . Platinum Investor III Flexible Premium Variable Life Insurance Policy - Policy Form No. 00600 . Platinum Investor PLUS Flexible Premium Variable Life Insurance Policy - Policy Form No. 02600 AIM V.I. Value Fund . Legacy Plus Flexible Premium Variable Life Insurance Policy - Policy Form No. 98615 AIM V.I. Capital Appreciation Fund . The One VUL Solution Flexible Premium AIM V.I. Government Securities Fund Variable Life Insurance Policy AIM V.I. High Yield Fund - Policy Form No. 99615 AIM V.I. International Equity Fund Page 2 of 4 AIM V.I. International Equity Fund . Legacy Plus Flexible Premium Variable Life Insurance Policy - Policy Form No. 99616 AIM V.I. International Equity Fund American General Life Insurance Company . Platinum Investor Variable Annuity AIM V.I. Value Fund Separate Account D - Policy Form No. 98020 Established: November 19, 1973 Effective Date: May 14, 2002 AIM VARIABLE INSURANCE FUNDS, INC. Attest: By: ------------------------ ------------------------------ Name: Nancy L. Martin Name: Robert H. Graham Title: Assistant Secretary Title: President (SEAL) A I M DISTRIBUTORS, INC. Attest: By: ------------------------ ------------------------------- Name: Nancy L. Martin Name: Michael J. Cemo Title: Assistant Secretary Title: President (SEAL) AMERICAN GENERAL LIFE INSURANCE COMPANY Attest: By: ------------------------ ----------------------------- Name: Name: ------------------------ ----------------------------- Title: Title: ------------------------ ----------------------------- (SEAL) Page 3 of 4 AMERICAN GENERAL DISTRIBUTORS, INC. Attest: By: ------------------------ -------------------------- Name: Name: ------------------------ -------------------------- Title: Title: ------------------------ -------------------------- (SEAL) Page 4 of 4