Mission Critical Completes Acquisition of Ganymede Software.

Business Editors & Technology Writers

HOUSTON--(BUSINESS WIRE)--April 11, 2000

Mission Critical Software Inc. (Nasdaq:MCSW), a leading provider of systems management software for Microsoft Windows NT- and Windows 2000-based networks and Internet infrastructures, announced today that it has completed its acquisition of Ganymede Software Inc., a privately held company that is a leading provider of end-to-end network performance management software, for approximately 2.75 million shares in Mission Critical Software common stock.

"Combining Ganymede's network management expertise and products with our strength in managing Windows-based eBusiness infrastructures and systems provides a powerful combination that will greatly benefit our mutual customers," said Michael S. Bennett, president and chief executive officer of Mission Critical Software Inc. "Ganymede has an impressive installed base of over 1,000 customers and we are excited about the opportunities to cross-sell our complementary products and provide an end-to-end solution to these established accounts."

Tim Huntley, president and chief executive officer at Ganymede, said, "We are excited by the opportunity to leverage the resources of Mission Critical Software to further enhance and strengthen our offerings in the Internet and eBusiness arena."

Analysts predict strong growth for this market segment. "We expect the market for performance management to grow to over $3 billion by 2002," said Paul Rodriguez, vice president of C.E. Unterberg, Towbin. "Combining Ganymede's specialization in network performance management with Mission Critical's expertise in systems, application and directory management creates a company very well positioned to take advantage of the growth in these highly charged market segments," he said.

About Mission Critical Software

Mission Critical Software Inc. (Nasdaq:MCSW) is a leading provider of systems management software for Windows NT- and Windows 2000-based networks and Internet infrastructures. The company is headquartered in Houston, Texas, and operates regional offices in the U.S., Canada and Europe. To learn more about Mission Critical Software Inc., visit our Web site at http://www.missioncritical.com/.

About Ganymede Software

Ganymede Software Inc. provides performance management solutions that help IT managers deliver reliable, high-performance networked applications. Using Ganymede's flagship software products, Chariot(R) for testing and Pegasus(TM) for monitoring, IT managers can understand networked application performance from the end user's perspective. The company, with revenue of approximately $10 million for the 12 months ended Dec. 31, 1999, is headquartered in Research Triangle Park, N.C. For more information, visit the Ganymede Web site at http://www.ganymede.com./.

All referenced product names are trademarks of their respective companies.

With the exception of the historical data contained herein, this press release is comprised of statements relating to future results of the companies that are "forward-looking statements" as defined in the Private Securities Litigation Reform Act of 1995. The companies' actual future results could differ materially from the results discussed herein. Factors that could cause or contribute to such differences include the risks inherent in acquisitions of technology businesses including the failure of the transactions to close due to regulatory obstacles or other factors, the successful integration of the companies, the timing and successful completion of technology and product development, our ability to retain and hire key executives, technical personnel and other employees, changing relationships with customers, suppliers and strategic partners, unanticipated costs associated with integration activities, as well as customer acceptance of new product offerings, and competition in the companies' various product lines. For a more complete discussion of risks and uncertainties see the section titled "Risk Factors" in Mission Critical Software's reports on form 10-Q as filed with the Securities and Exchange Commission.