SOFTBANK VC Selects Interliant and Onyx Software e-Business Offering as a Preferred Solution for its 200 Portfolio Companies

Onyx-Interliant Offering Already Live at Evoke Communications

BELLEVUE, WA, and PURCHASE, NY, September 13, 2000 - Onyx Software Corp. (Nasdaq: ONXS), a global provider of enterprise-wide, customer-centric e-business solutions, and Interliant Inc. (Nasdaq: INIT), a global application service provider (ASP), today announced that they have been selected by Internet investment giant SOFTBANK Venture Capital as preferred providers for e-business solutions. As a result, SOFTBANK VC will recommend the Interliant/Onyx hosted solution, which leverages the extensive high-tech industry experience of both companies, to its portfolio of more than 200 technology companies.

The Web-based e-business offering, built on Onyx 2000 and hosted and managed by Interliant, helps sales and marketing personnel track and manage critical customer interactions (both on- and offline) throughout the business relationship. The highly scalable solution, which is already in use by Evoke Communications (Nasdaq:EVOK), the leading provider of integrated Internet communication services for Web-based collaboration, provides the additional benefit of quick implementation and upgrading.

"One of the most difficult aspects of managing and fueling the exponential growth of high-tech companies is quickly deploying e-business software that helps companies win rather than holds them back," said Gary Rieschel, executive managing partner for SOFTBANK VC."The Onyx offering, which has been proven at hundreds of the most successful high-tech companies in the world, gives us just what our portfolio companies need to maintain a competitive advantage while enjoying explosive growth. Offering it hosted through Interliant takes an enormous burden off their shoulders by letting them focus on their core business, customer acquisition, retention and expansion."

"Internet and high growth technology companies are under more pressure than ever to enhance customer and partner loyalty and please investors at the same time, and that means efficiently managing critical business relationships and maximizing revenue opportunities," said Brent Frei, president and CEO of Onyx Software. "By partnering with Onyx and Interliant to deliver this powerful, customized, enterprise-wide solution, SOFTBANK has shown once again why it is a true leader and shaper of the Internet economy."

"We're excited to be partnering with two forward-looking companies that recognize that enterprise application deployment is moving rapidly toward an ASP model," said Herb Hribar, president and CEO of Interliant. "SOFTBANK companies exemplify the perfect customer fit for Onyx and Interliant. Technology companies experiencing very rapid growth need a quickly deployable system, implemented and maintained by experts, that grows with them and has the flexibility to change as their business requirements change. This partnership is aimed at giving companies that power."

First Softbank Company Live with Onyx 2000
Evoke Communications, which uses the Internet to expand and enhance communications for businesses and consumers, is the first company to standardize its customer-facing operations on the Interliant-hosted Onyx 2000 solution. The solution powers Evoke Communications' aggressively expanding global sales and marketing team. It provides a simple Internet workplace that enables Evoke Communications to unify customer information across sales, marketing, support and operations, presenting employees a complete view of every customer relationship beginning with the first contact. By opting for a hosted service, Evoke Communications gains the benefit of rapidly deploying a flexible and cost-effective relationship management solution that enables the company to maintain focus on its core business.

"The Onyx/Interliant solution is a perfect fit for our customer information platform because it's Web-based and works across our company for capturing both online and offline customer interactions," said Jim LeJeal, Evoke Communications co-founder and chief operating officer. "Onyx allows us to tie together all of our customer relationships and make them accessible to employees in a personalized Web interface. And, with Interliant hosting and maintaining Onyx, we are guaranteed reliability."

About Interliant
Interliant, Inc. (NASDAQ: INIT) is a leading global application service provider (ASP) and pioneer in the ASP market. Interliant's INIT Solutions Suite includes messaging and knowledge management, security, e-commerce, customer relationship management, enterprise resource planning, distributed learning, Web-site hosting and Web-based rental applications. Interliant, headquartered in Purchase, NY, has forged strategic alliances with the world's leading software, networking and hardware manufacturers including Microsoft (NASDAQ: MSFT), Dell Computer Corporation (NASDAQ: DELL), Oracle Corporation (NASDAQ:ORCL), BMC Software (NASDAQ: BMCS), Network Solutions (NASDAQ: NSOL), IBM (NYSE:IBM) and Lotus Development Corp. For more information, visit www.interliant.com.

About Onyx Software
Onyx Software Corp. (Nasdaq: ONXS) is a global supplier of enterprise-wide, customer-centric e-business applications. Customer-centric e-business software aggregates customer and partner information gathered both online and offline from within an enterprise, including sales, marketing, service and support, and makes total customer and partner information available enterprise-wide.

Onyx Software's award-winning products are known for flexibility, reliability and ease of use, resulting in high return on investment, low total cost of ownership and industry-leading customer satisfaction. Onyx operates worldwide, supporting large, medium and small companies including Agile Software, American Express, Broadwing, Commerce One, Credit Suisse, Dreyfus, FirstWorld Communications, Hummingbird, NTL Group, Portland Trail Blazers, Prudential Securities, Sierra Health Services and Singapore Cable Vision. For more information, call 888-275-6699 or email info@onyx.com. Please visit http://www.onyx.com/annualreport to download the Onyx Software 1999 annual report and 10K.

Interliant is a registered trademark of Interliant, Inc. Onyx Software Corporation is a trademark or registered trademark of Onyx Software Corporation. All other company and product names are trademarks, registered trademarks or service marks of their respective companies.

Onyx Software Corporation 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 guaranties 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 quarter ended June 30, 2000. 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.

Interliant Inc.
This press release contains forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. Any statements contained herein that are not statements of historical fact may be deemed to be forward-looking statements. Actual results and the timing of certain events may differ significantly from the results anticipated or discussed in the forward-looking statements. These forward-looking statements are based largely on the Company's current expectations and are subject to a number of risks and uncertainties. In addition to this press release, other important factors to consider in evaluating the forward-looking statements include, without limitation, the Company's Form 10-K filed with the Securities and Exchange Commission ("SEC") on March 29, 2000, and the Company's registration statement on Form S-1, as amended, that was filed with the SEC on May 16, 2000, and in other reports of the Company filed from time to time with the SEC. In light of these risks and uncertainties, there can be no assurance that the forward-looking statements contained herein will in fact be realized and the Company assumes no obligation to update this information.

Onyx Media Contact: Heather Knox PR Director Onyx Software Telephone: 425.519.9225 Fax: 425.732.2414

Interliant Media Contact: Rosanne E. Desmone Interliant Inc. (703) 762-1759

Interliant Investor Contact: Beth O'Byrne Interliant Inc. (914) 640-9000 x211