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CUSIP No. 300867
EXHIBIT 28
JOINT FILING AGREEMENT
The undersigned reporting persons hereby agree that the statements
filed pursuant to this Schedule 13D, to which this Agreement is filed as an
exhibit, are filed on behalf of each of them.
INVESTORS:
Date: September 10, 2001 INSIGHT VENTURE PARTNERS IV, L.P.
By: Insight Venture Associates IV, L.L.C., its
general partner
By: /s/ Xxxxx Xxxxxx
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Name: Xxxxx Xxxxxx
Title: Managing Director
Date: September 10, 2001 INSIGHT VENTURE PARTNERS (CAYMAN) IV, L.P.
By: Insight Venture Associates IV, L.L.C., its
general partner
By: /s/ Xxxxx Xxxxxx
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Name: Xxxxx Xxxxxx
Title: Managing Director
Date: September 10, 2001 INSIGHT VENTURE PARTNERS IV (FUND B), L.P.
By: Insight Venture Associates IV, L.L.C., its
general partner
By: /s/ Xxxxx Xxxxxx
---------------------------------------------
Name: Xxxxx Xxxxxx
Title: Managing Director
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CUSIP No. 300867
Date: September 10, 2001 INSIGHT VENTURE PARTNERS IV (CO-INVESTORS), L.P.
By: Insight Venture Associates IV, L.L.C., its
general partner
By: /s/ Xxxxx Xxxxxx
---------------------------------------------
Name: Xxxxx Xxxxxx
Title: Managing Director
