EXHIBIT INDEX

(d)(5)   Investment Management Services Agreement between Registrant, on behalf
         of RiverSource Floating Rate Fund, and RiverSource Investments, LLC,
         dated Jan. 12, 2006.

(d)(11)  Subadvisory Transfer Agreement, dated Oct. 1, 2005, between Ameriprise
         Financial, Inc. and Wellington Managment Company, LLP.

(d)(12)  Subadvisory Transfer Agreement, dated Oct. 1, 2005, between Ameriprise
         Financial, Inc. and Lord, Abbett & Co.

(d)(13)  Subadvisory Transfer Agreement, dated Oct. 1, 2005, between Ameriprise
         Financial, Inc. and American Century Investment Management, Inc.

(i)      Opinion and consent of counsel as to the legality of the securities
         being registered.

(m)(5)   Amendment, dated Jan. 12, 2006, to Plan and Agreement of Distribution
         (Classes A, B and C), dated Oct. 1, 2005, between the Registrant, on
         behalf of RiverSource Core Bond Fund, RiverSource Income Opportunities
         Fund and RiverSource Limited Duration Bond Fund, and Ameriprise
         Financial Services, Inc.

(q)(1)   Directors'/Trustees Power of Attorney to sign Amendments to this
         Registration Statement, dated Jan. 11, 2006.