October 22, 1999 Mr. Edward S. Adams Jon Adams Financial Co., L.L.P. 175 Westwood, Suite 1000 Wayzata, MN 55391 RE: Engagement Letter dated May 12, 1999 between CorVu Corporation and Jon Adams Financial Co., L.L.P (the "Engagement Letter") Dear Ed:...

                                CorVu Corporation
                        0000 Xxxx 00xx Xxxxxx, Xxxxx 000
                                 Xxxxx, XX 00000


                                October 22, 1999

Xx. Xxxxxx X. Xxxxx
Xxx Xxxxx Financial Co., L.L.P.
000 Xxxxxxxx, Xxxxx 0000
Xxxxxxx, XX 00000

RE:      Engagement Letter dated May 12, 1999 between CorVu Corporation and Xxx
         Xxxxx Financial Co., L.L.P (the "Engagement Letter")

Dear Ed:

         This letter is in regard to Section 1 of the Engagement Letter, which
provides that CorVu retains Xxx Xxxxx Financial as its exclusive financial and
business advisor for four months from May 12, 1999. We have agreed to amend
Section 1 of the Engagement Letter to extend the exclusive engagement period
until December 31, 1999.

         Please indicate your agreement to the foregoing by signing the enclosed
duplicate copy of this letter and returning it to the undersigned.

                                       Sincerely,

                                       CorVu Corporation


                                       By: /s/ Xxxxxx XxxXxxxxx
                                            Xxxxxx XxxXxxxxx, President and
                                            Chief Executive Officer

ACCEPTED AND AGREED TO this ___ day of October, 1999

Xxx Xxxxx Financial Co., L.L.P


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