Aspen Technology Announces Webcast of Annual Shareholder Meeting; Shareholder Meeting Will Be Held on Tuesday, December 9, 2003 at 3:00 p.m. ET

December 2, 2003

CAMBRIDGE, Mass., Dec 2, 2003 (BUSINESS WIRE) -- Aspen Technology, Inc. (Nasdaq:AZPN) today announced that the company will webcast its annual shareholder meeting, which will be held on Tuesday, December 9, 2003 in Boston, Massachusetts. David McQuillin, President & CEO of AspenTech, will review the company's operational performance in the previous fiscal year and discuss the company's strategy for the emerging Enterprise Operations Management market. The webcast will be open to interested parties by accessing the Investor Relations section of the company's website at and clicking on the webcast hyperlink.

What: Aspen Technology's Annual Shareholder Meeting

When: Tuesday, December 9, 2003, 3:00 p.m. ET


How: Live over the Internet - Access the call through the AspenTech homepage

Contact: Joshua Young, Director of Investor Relations, Aspen Technology, Inc.

If you are unable to listen to the live Webcast, the call will be archived on the Investor Relations section of AspenTech's website at the conclusion of the meeting.

About AspenTech

Aspen Technology, Inc. provides industry-leading software and implementation services that enable process companies to increase efficiency and profitability. AspenTech's engineering product line is used to design and improve plants and processes, maximizing returns throughout an asset's operating life. Its manufacturing/supply chain product line allows companies to increase margins in their plants and supply chains, by managing customer demand, optimizing production, and streamlining the delivery of finished products. These two offerings are combined to create solutions for Enterprise Operations Management (EOM), integrated enterprise-wide systems that provide process manufacturers with the capability to dramatically improve their operating performance. Over 1,500 leading companies already rely on AspenTech's software, including Aventis, Bayer, BASF, BP, ChevronTexaco, Dow Chemical, DuPont, ExxonMobil, Fluor, Foster Wheeler, GlaxoSmithKline, Shell, and TotalFinaElf. For more information, visit .

Aspen Technology, Inc.
Joshua Young, 617949-1274