Mainsoft Corporation forms strategic alliance with PTC

CPC leader enters an agreement with leading provider of cross-platform solutions for the enterprise

SAN JOSE, Calif. - January 24, 2000 - Mainsoft Corporation, the leader in cross-platform solutions for the enterprise, today announced that Parametric Technology Corporation (NASDAQ: PMTC), the leading providers of collaborative product commerce (CPC) and flexible engineering solutions, has selected Mainsoft's Windows platform for Unix, MainWin, as the re-hosting infrastructure to port Windows NT applications to Unix platforms.This strategic relationship with PTC is important for Mainsoft as it continues to build its stronghold in the flexible engineering and MDA (mechanical design automation) marketplace.

"We are pleased to have this relationship with one of the worlds largest software companies and the leading flexible engineering software provider," said Yaacov Cohen, president of Mainsoft. "This relationship validates the fact that Mainsoft can deliver mission-critical applications to this vertical market.Our Windows platform for Unix enables MDA software suppliers to standardize development on Windows and deploy on Unix platforms, saving companies considerable time and money."

Specifically, PTC plans to incorporate Mainsoft technology into its DIVISION MockUp and ProductView visualization solutions. ProductView, available stand-alone or fully integrated with web-based Windchill, is an enterprise visualization solution that allows members of the extended enterprise to access and view product information, enhancing collaboration between customers and suppliers. PTC's DIVISION MockUp is the premier performance graphical visualization and digital mockup solution for desktop designing, engineering, and planning functions within the product development process. These products are among the first CPC solutions ported to the Unix platform from a Windows NT source code base using Mainsoft's Windows platform for Unix, MainWin.

"We selected Mainsoft as our partner because of their proven technology in re-hosting Windows applications to Unix platforms," said Mark Watkins Vice President of Enterprise Product Modeling, PTC. "We are excited to work with a company that will provide us with a solid technology infrastructure. Mainsoft's Windows platform for Unix will help us dramatically increase our competitive advantage in the CPC and visualization marketplace."

About Windchill

Windchill brings product development to the web at Internet speed. Focused on all phases of a product's lifecycle - from concept and definition to production, service, maintenance and retirement - Windchill advances product and process lifestyle management through its unique web-based approach, tightly integrating suppliers and customers into the development process, increasing product innovation and speeding time-to-market for complex, customer-driven products.

About DIVISION

The DIVISION solutions are members of the PTC i-Series, which provides interoperability with Pro/ENGINEER and other PTC i-Series members such as CADDS 5. With technology that integrates information from multiple independent sources including CAD, PDM, and office documents, DIVISION represents the PTC visualization solution that increases enterprise product information collaboration, enabling more people to participate earlier in a design process and throughout the product lifecycle. DIVISION is also seamlessly integrated with the Windchill Factor! e-Series, to create a true enterprise collaborative product commerce (CPC) environment. DIVISION 2000i helps customers unlock the potential of the virtual product through distributed access, wide-range interoperability, superior functionality, radical scalability and performance, and a robust open architecture.

About PTC

Parametric Technology Corporation, founded in 1985 and headquartered in Waltham, Mass., develops, markets and supports collaborative product commerce (CPC) and flexible engineering solutions that help companies shape innovation and achieve sustained competitive advantage. These solutions leverage PTC's leadership in providing manufacturing software that streamlines product development and delivery processes, improves product quality and reduces cost and time-to-market cycles. PTC's software solutions are complemented by the strength and experience of its professional services organization, which provides training, consulting and support to customers worldwide. In its fiscal year ended September 30, 1999, the company achieved more than $1 billion in revenue. PTC can be reached at 781-398-5000, or via the web at http://www.ptc.com.

About MainWin

MainWin is Mainsoft's Windows platform for Unix systems including Linux. MainWin includes the implementation of Win32 APIs and Windows NT services on Unix. Through strategic agreements with Microsoft, Mainsoft has access to Windows NT and Windows 2000 source code. Mainsoft has incorporated several million lines of original Windows NT source code into MainWin. This ensures that applications developed with C, C++ and Dynamic HTML for Windows will run on Unix as it does on Windows NT. For example, some of the more leading business applications re-hosted to Unix with MainWin include: Microsoft's Internet Explorer; Microsoft's Outlook; Computer Associate's Unicenter; and Alcatel's X-Vision Enterprise. To date, the company has deployed more than one million end-user licenses of MainWin.

About Mainsoft Corporation

Mainsoft's technology automates re-hosting Windows NT applications on Unix platforms including Linux. Founded in 1991, Mainsoft is privately held with its corporate headquarters in San Jose, CA. The company maintains sales offices in Boston, Washington D.C., and London.

Mainsoft customers include Fortune 1,000 companies, Independent Software Vendors (ISV's), corporate enterprise software developers, government agencies, and OEMs. For additional information on Mainsoft, call 408.544.1400 or visit their Web site at www.mainsoft.com.

©2000 Mainsoft Corporation. Mainsoft and MainWin are registered trademarks of Mainsoft Corporation. All other products or company names mentioned are used for identification purposes only, and may be trademarked, registered, or copyrighted by their respective owners.