Bellevue, Wash. - Onyx Software Corporation (NASDAQ: ONXS) and Onyx partner and leading e-business integrator STAR Information Technology have integrated the Onyx suite of business-building, enterprise-class customer relationship management (CRM) solutions with Microsoft® SharePoint® Portal Server and Microsoft Office XP, enabling Onyx customers to immediately take advantage of the powerful communication and collaboration functionality in the new Microsoft products. The announcement was made in conjunction with the launch of SharePoint Portal Server and Office XP.

Customer information captured in Onyx will be instantly accessible to users through SharePoint Portal Server and Office XP. Working with Microsoft and Onyx, STAR Information Technology converted the Onyx Employee Portal interface into Web Parts that can be plugged into the Digital Dashboard of Microsoft SharePoint Portal Server, providing a personalized interface that can be configured for easy access to the information and functionality that front office users require. STAR Information Technology has also created Smart Tags to standard elements in the Onyx solution including company contact, demographics, sales and support incidents and search capability, making this information easily available for viewing and editing from within Office XP applications.

"Developers of enterprise e-business applications can take advantage of the flexibility and customization capabilities of SharePoint Portal Server and Office XP to rapidly develop solutions that make it easier for companies to improve productivity and communication," said Lisa Gurry, Product Manager for Office at Microsoft Corp. "Onyx's XML-based architecture speeds integration with SharePoint Portal Server and Office XP, making it possible for Onyx to offer its customers a solution that enables business agility."

"Because Onyx architecture is XML-based and extremely well designed, its customers can rapidly integrate SharePoint Portal Server and the Office XP platform," said Gene Rodgers, president and chief executive officer of STAR Information Technology. "Our experience with Onyx, Microsoft and XML made it painless for us to utilize existing Onyx components and turn them into Web Parts for SharePoint Portal Server and smart tags for Office XP. With this architecture, Onyx is well-positioned for fast, easy, scalable integration with any Microsoft .NET architecture, helping customers get the most out of their CRM solution."

"Onyx's CRM portal solution enables employees across the enterprise to access and share customer information through a single, convenient interface," said Bill Bunker, vice president product marketing of Onyx. "Integration with SharePoint Portal Server, with its powerful search capability and integrated document management tools, takes the portal concept to the next level and enhances our joint customers' ability to share critical data. This will help companies further leverage their CRM investment and achieve an even higher level of communication and collaboration."

About STAR Information Technology
STAR is a leading provider of management consulting and e-business solutions for enterprise portals, business intelligence, customer relationship management, and partner relationship management. STAR delivers strategic solutions that generate sustainable competitive advantages. STAR's best-in-class business and technology solutions leverage our partnerships with industry leaders, including Onyx Software, Microsoft, Cognos, ChannelWave and Plumtree. Visit STAR at www.starit.com.

About Onyx Software
Onyx Software Corp. (NASDAQ: ONXS) is a global supplier of customer relationship management (CRM) enterprise applications that power a company's entire business world, connecting sales, marketing and service organizations with customers, prospects and partners. Through an innovative mix of Internet technology, strategic services and customer commitment, Onyx helps companies create the seamless, branded customer experiences they need to forge competitive advantage and build real business value. Its reliable, scalable, flexible, holistic solutions enable companies to attract, acquire and retain customers and partners across all channels and touch points. Onyx customers include American Express, Broadwing, Commerce One, Credit Suisse, Dreyfus, FirstWorld Communications, Portland Trail Blazers, Prudential Investments and Sierra Health Services. Get more information at 888-ASK-ONYX, info@onyx.com or www.onyx.com.

This press release contains forward-looking statements. Forward-looking statements are based on the opinions and estimates of management at the time the statements are made and are subject to risks and uncertainties that could cause actual results to differ materially from those anticipated in the forward-looking statements. The words "believe," "expect," "intend," "anticipate," variations of such words, and similar expressions identify forward-looking statements, but their absence does not mean that the statement is not forward-looking. These statements are not guarantees of future performance and are subject to risks, uncertainties and assumptions that are difficult to predict. Factors that could affect Onyx's actual results include, but are not limited to, the "Important Factors That May Affect Our Business, Our Results of Operations and Our Stock Price" described in our quarterly report on form 10-Q for the period ending March 31, 2001. Readers are cautioned not to place undue reliance upon these forward-looking statements that speak only as to the date of this release. Onyx undertakes no obligation to update publicly any forward-looking statements to reflect new information, events or circumstances after the date of this release or to reflect the occurrence of unanticipated events.

Contact:

Shawn Yujuico VisiTech Public Relations 817.267.9686

Toby Denbow STAR Information Technology 508.359.6892, x127

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MEDIA CONTACTS

Americas / Corporate Headquarters Mitch Briggs Public Relations Coordinator Consona Corporation Telephone: 317.249.1620 Mobile: 317.829.4210 Europe, Middle East, Africa Richard Furby Managing Director, Onyx UK Telephone: +44 (0) 1344 322 199 Fax: +44 (0) 1344 489 035 Japan Daisuke Sawamura Director, Professional Services Telephone: +81 03 5215 7311