Gensym Announces Immediate Availability of G2 7.0; Latest Release of Flagship Software Simplifies Deployment of Reasoning Technology.

Business Editors/Health/Medical Writers

BURLINGTON, Mass.--(BUSINESS WIRE)--March 24, 2003

Gensym Corporation (OTC Bulletin Board: GNSM), a leading provider of software and services for expert operations management, today announced the immediate availability of a major new release of its flagship software platform, G2(R) Version 7.0. This release simplifies deployment of G2 applications through the addition of a new Microsoft(R) Windows(R) based user interface (UI), support of extensible markup language (XML), and inclusion of a standard data-historian bridge.

"This major release significantly enhances the ease and efficiency with which solutions can be deployed throughout an enterprise," said Lowell Hawkinson, Gensym's chairman, president, and CEO. "G2 7.0 is a key step forward in our continued commitment to and investment in advancing our leading G2-based reasoning technology.

"The most important new feature of G2 7.0 is its native Windows UI. This feature has been the top request from our user community. We heard very positive feedback from our users about this UI during the G2 7.0 alpha and beta testing programs. In particular, we anticipate that G2 7.0's ActiveX control for this UI will be of very strong interest to our users for deployment of UIs within Web browsers and other Windows programs."

G2 7.0's new Windows UI offers valuable flexibility for deploying G2 solutions within multiple operating system environments. This flexibility results from the new UI being enabled through G2's UI client, named Telewindows(R). A Telewindows user running the new UI on a Windows PC can connect to G2 running on any of its supported operating systems, including Windows, Sun(R) Solaris(TM), IBM(R) AIX(TM), Red Hat(R) Linux, HP(R)-UX, and Compaq Tru64 UNIX(R).

"With G2 7.0, we are also decreasing the time needed to integrate G2's reasoning technology within operational systems," said David Kuznick, Gensym's director of core product development. "We are introducing support of XML. XML has rapidly emerged as a standard for Internet-based integration of applications. And for users within the manufacturing industries, G2 7.0 saves time in connecting to real-time and historical plant data by adding a data-historian bridge as part of the G2 bundled package. This bridge, the G2 bridge to the OSIsoft(TM) PI (Plant Information) data historian, is immediately available for installation."

Gensym Partners See Advantages of G2 7.0

"We apply G2-based expert systems for control and coordination of industrial processes," said Francois Racine, engineering manager with Prexsis, a Canadian-based consultancy and a Gensym partner. "For example, one of the world's largest aerospace manufacturers is using one of our G2 solutions to reduce operating costs, decrease production cycle times, and improve production quality in one of their major facilities. The solution optimizes production of aircraft components through real-time scheduling of the components as they are moved from one work area to another. The solution also monitors for process problems and helps operators to effectively respond. We are pleased with what we have seen during our prerelease testing of G2 7.0. We look forward to using G2 7.0's new UI and XML capabilities to help us deploy our solutions even more effectively."

"As a Gensym partner, we are basing our knowledge-based network management suite, named Cortex, on G2," said Louis Meyer, managing director of Pivetal Limited, which has locations in the UK and Spain. "Our software is used in the telecommunications industry. For example, one of the world's largest communications companies is using Cortex to improve service quality and reduce costs by identifying and fixing problems within their voice network, though the technology is equally applicable to data and voice over IP (VoIP) networks. The solution employs over 300 graphical rules, mostly built by end users, that automatically respond to well in excess of 95% of more than a million fault messages generated daily by the network. We have been testing prerelease versions of G2 7.0. With the availability of its new native Windows UI capabilities, we see an excellent opportunity to extend the power of Cortex's functionality through Web-based UIs. Additionally, G2 7.0's support of XML will enable us to more easily integrate Cortex solutions with other systems, including Web services."

About Gensym Corporation

Gensym Corporation (www.gensym.com) is a provider of software products and services that enable organizations to automate aspects of their operations that have historically required the direct attention of human experts. Gensym's product and service offerings are all based on or relate to Gensym's flagship product G2, which can emulate the reasoning of human experts as they assess, diagnose, and respond to unusual operating situations or as they seek to optimize operations.

With G2, organizations in manufacturing, communications, transportation, aerospace, and government maximize the performance and availability of their operations. For example, Fortune 1000 manufacturers such as ExxonMobil, DuPont, LaFarge, Eli Lilly, and Seagate use G2 to help operators detect problems early and to provide advice that avoids off-specification production and unexpected shutdowns. Manufacturers and government agencies use G2 to optimize their supply chain and logistics operations. Communications companies such as AT&T, Ericsson Wireless, and Nokia use G2 to troubleshoot network faults so that network availability and service levels are maximized. Gensym has numerous partners who can help meet the specific needs of customers. Gensym and its partners deliver a range of services, including training, software support, application consulting and complete solutions. Through partners and through its direct sales force, Gensym serves customers worldwide.

Gensym, G2, and Telewindows are registered trademarks of Gensym Corporation. All other trademarks and service marks are the properties of their respective owners.

This press release contains forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Any statements contained in this press release that relate to prospective events or developments are deemed to be forward-looking statements. Words such as "believes," "anticipates," "plans," "expects," "will" and similar expressions are intended to identify forward-looking statements. These forward-looking statements are subject to important risks and uncertainties, which could cause actual results to differ materially from those anticipated. These important risks and uncertainties include the ability of G2 Version 7.0 to meet customer expectations, the effectiveness of our indirect distribution channel and strategic partnerships, the impact of intense competition, fluctuations in demand for our products, and the other risks which we describe under the caption "Factors That May Affect Future Results" in our Quarterly Report on Form 10-Q for the quarter ended September 30, 2002. Although we believe the expectations reflected in the forward- looking statements are based on reasonable assumptions, we can give no assurance that our expectations will be attained. We disclaim any intention or obligation to update any forward- looking statements as a result of developments occurring after the date of this press release.