POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                           /s/ Bob R. Baker
                                           ------------------------------
                                               Bob R. Baker


                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                                     /s/ Frank S. Bayley
                                                     ---------------------------
                                                           Frank S. Bayley



                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                                /s/ James T. Bunch
                                                --------------------------------
                                                      James T. Bunch



                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                               /s/ Bruce L. Crockett
                                               ---------------------------------
                                                     Bruce L. Crockett



                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                             /s/ Albert R. Dowden
                                             -----------------------------------
                                                   Albert R. Dowden



                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                              /s/ Edward K. Dunn, Jr.
                                              ----------------------------------
                                                    Edward K. Dunn, Jr.



                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                                /s/ Jack M. Fields
                                                --------------------------------
                                                      Jack M. Fields



                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                                   /s/ Carl Frischling
                                                   -----------------------------
                                                         Carl Frischling



                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Kevin M. Carome, his true and lawful attorney-in-fact and agent, with
full power of substitution and resubstitution, for him and in his name, place
and stead, in any and all his capacities as a trustee of AIM Core Allocation
Portfolio Series, AIM Counselor Series Trust, AIM Equity Funds, AIM Floating
Rate Fund, AIM Funds Group, AIM Growth Series, AIM International Mutual Funds,
AIM Investment Funds, AIM Investment Securities Funds, AIM Sector Funds, AIM
Select Real Estate Income Fund, AIM Special Opportunities Funds, AIM Stock
Funds, AIM Summit Fund, AIM Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM
Variable Insurance Funds, Short-Term Investments Trust and Tax-Free Investments
Trust, each a Delaware statutory trust, to sign on his or its behalf any and all
Registration Statements (including any pre-effective amendments to Registration
Statements) under the Securities Act of 1933, the Investment Company Act of 1940
and any amendments and supplements thereto and applications thereunder, and to
file the same, with all exhibits thereto, and other documents in connection
therewith, with the Securities and Exchange Commission and any other applicable
regulatory authority, granting unto said attorney-in-fact and agent, full power
and authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, and fully as to all intents and
purposes as he might or could do in person, hereby ratifying and confirming all
that said attorney-in-fact and agent, may lawfully do or cause to be done by
virtue hereof.

      DATED this 12th day of October, 2005.

                                            /s/ Robert H. Graham
                                            ------------------------------------
                                                  Robert H. Graham



                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 3rd day of October, 2005.

                                               /s/ Gerald J. Lewis
                                               ---------------------------------
                                                     Gerald J. Lewis



                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                                   /s/ Prema Mathai-Davis
                                                   -----------------------------
                                                         Prema Mathai-Davis



                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                              /s/ Lewis F. Pennock
                                              ----------------------------------
                                                    Lewis F. Pennock


                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                        /s/ Ruth H. Quigley
                                        ----------------------------------------
                                              Ruth H. Quigley



                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                        /s/ Larry Soll
                                        ----------------------------------------
                                              Larry Soll



                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                        /s/ Raymond Stickel, Jr.
                                        ----------------------------------------
                                              Raymond Stickel, Jr.



                                POWER OF ATTORNEY

      KNOW ALL MEN BY THESE PRESENTS, that the undersigned constitutes and
appoints Robert H. Graham or Kevin M. Carome, and each of them, his true and
lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all his
capacities as a trustee of AIM Core Allocation Portfolio Series, AIM Counselor
Series Trust, AIM Equity Funds, AIM Floating Rate Fund, AIM Funds Group, AIM
Growth Series, AIM International Mutual Funds, AIM Investment Funds, AIM
Investment Securities Funds, AIM Sector Funds, AIM Select Real Estate Income
Fund, AIM Special Opportunities Funds, AIM Stock Funds, AIM Summit Fund, AIM
Tax-Exempt Funds, AIM Treasurer's Series Trust, AIM Variable Insurance Funds,
Short-Term Investments Trust and Tax-Free Investments Trust, each a Delaware
statutory trust, to sign on his or its behalf any and all Registration
Statements (including any pre-effective amendments to Registration Statements)
under the Securities Act of 1933, the Investment Company Act of 1940 and any
amendments and supplements thereto and applications thereunder, and to file the
same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other applicable regulatory
authority, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, and fully as to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, and each of them, may
lawfully do or cause to be done by virtue hereof.

      DATED this 12th day of October, 2005.

                                        /s/ Mark H. Williamson
                                        ----------------------------------------
                                              Mark H. Williamson