Exhibit 1.A(3)(b)(iv) AMENDMENT NO. 2 PARTICIPATION AGREEMENT The Participation Agreement (the "Agreement"), dated December 3, 1997, by and among AIM Variable Insurance Funds, Inc., a Maryland corporation, Security Life of Denver Insurance Company, a Colorado life Insurance company and ING America Equities, Inc., a Colorado corporation, is hereby amended as follows: Schedule A of the Agreement is hereby deleted in its entirety and replaced with the following: SCHEDULE A FUNDS AVAILABLE UNDER THE SEPARATE ACCOUNTS CONTRACTS FUNDED BY THE SEPARATE POLICIES UTILIZING THE FUNDS ACCOUNTS AIM V.I. Government Securities Fund Separate Account Al o THE EXCHEQUER VARIABLE ANNUITY AIM V.I. Capital Appreciation Fund Separate Account Ll o FIRST LINE VARIABLE UNIVERSAL LIFE AIM V.I. Government Securities Fund o FIRSTLINE II VARIABLE UNIVERSAL LIFE o STRATEGIC ADVANTAGE VARIABLE UNIVERSAL LIFE o STRATEGIC ADVANTAGE II VARIABLE UNIVERSAL LIFE o VARIABLE LAST SURVIVOR UNIVERSAL LIFE All other terms and provisions of the Agreement not amended herein shall remain in full force and effect. Effective Date: May 20, 1999 AIM VARIABLE INSURANCE FUNDS, INC. Attest:_____________________________ By:_____________________________ Name: Nancy L. Martin Name: Robert H. Graham Title: Assistant Secretary Title: President (SEAL) 1 of 2 SECURITY LIFE OF DENVER INSURANCE COMPANY Attest:__________________________ By: __________________________ Name: __________________________ Name: Gary W. Waggoner Title: __________________________ Title: Vice President (SEAL) ING AMERICA EQUITIES, INC. Attest:__________________________ By: __________________________ Name: __________________________ Name: Carol D. Hard Title: __________________________ Title: President (SEAL) 2 of 2