906.Cert

                Certification Pursuant to 18 U.S.C. Section 1350,
                             As Adopted Pursuant to
                  Section 906 of the Sarbanes-Oxley Act of 2002

Name of Issuer: Van Kampen Strategic Growth Fund

     In connection with the Report on Form N-CSR (the "Report") of the
above-named issuer for the period ended August 31, 2006 that is accompanied by
this certification, the undersigned hereby certifies that:

1.   The Report fully complies with the requirements of Section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of the Issuer.

Date: October 19, 2006


                                        /s/ Ronald E. Robison
                                        ----------------------------------------
                                        Ronald E. Robison
                                        Principal Executive Officer

A signed original of this written statement required by Section 906 has been
provided to Van Kampen Strategic Growth Fund and will be retained by Van Kampen
Strategic Growth Fund and furnished to the Securities and Exchange Commission or
its staff upon request. This written statement required by Section 906 is being
furnished with this Report, but not being filed as part of this Report.



                Certification Pursuant to 18 U.S.C. Section 1350,
                             As Adopted Pursuant to
                  Section 906 of the Sarbanes-Oxley Act of 2002

Name of Issuer: Van Kampen Strategic Growth Fund

     In connection with the Report on Form N-CSR (the "Report") of the
above-named issuer for the period ended August 31, 2006 that is accompanied by
this certification, the undersigned hereby certifies that:

1.   The Report fully complies with the requirements of Section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of the Issuer.

Date: October 19, 2006


                                        /s/ James W. Garrett
                                        ----------------------------------------
                                        James W. Garrett
                                        Principal Financial Officer

A signed original of this written statement required by Section 906 has been
provided to Van Kampen Strategic Growth Fund and will be retained by Van Kampen
Strategic Growth Fund and furnished to the Securities and Exchange Commission or
its staff upon request. This written statement required by Section 906 is being
furnished with this Report, but not being filed as part of this Report.