Applicast And Siebel Systems Extend Strategic Partnership; Alliance Brings Powerful Outsourced eBusiness Solutions to Aggressive-Growth Companies Worldwide.

Business Editors/High-Tech Writers

MENLO PARK, Calif.--(BUSINESS WIRE)--April 24, 2000

Applicast(TM), Inc., the premier total-solution application service provider (ASP) for aggressive-growth companies, and Siebel Systems, Inc. (Nasdaq:SEBL), the world's leading supplier of eBusiness application software, today announced that the two companies have extended their partnership to bring the benefits of Siebel eBusiness Applications to aggressive-growth companies worldwide. Advancing from a Siebel Premier Platform Partner to a Siebel Strategic Platform Partner, Applicast will continue to work closely with Siebel sales and marketing organizations to bring Siebel eBusiness Applications to fast-track companies through Applicast's full-service, full-lifecycle outsourcing services.

"We've had tremendous success collaborating with Applicast to reach early-stage and mid-market companies, and raising our alliance to the next partnership level was the natural next step," said Bruce Cleveland, vice president, alliances, at Siebel Systems. "Applicast's deep industry expertise lets `dot-coms' and other fast-track businesses benefit early-on from Siebel eBusiness Applications, so these organizations can manage customer relationships, marketing, and sales to support and promote rapid growth. Applicast provides aggressive-growth companies with a superior, full-service implementation and outsourcing solution."

As partners at the Siebel Strategic Platform level, Siebel Systems and Applicast will continue to leverage the companies' respective strengths to jointly sell and market Siebel eBusiness Applications with Applicast's application outsourcing solutions. Applicast's full-service solutions include implementation, hosted operations, user and systems support and proactive evolution of Siebel applications as customers' needs change with growth.

"We've been committed to implementing and maintaining complete Siebel solutions from the start, as one of our key company tenets is to provide customers with only best-of-breed, world-class application software," said John McGrory, Applicast president and CEO. "Our relationship with Siebel Systems has grown rapidly in the past year, mirroring the rapid growth of our joint customer base. Through this alliance, we will fuel our momentum with more internal Siebel experts, stepped-up marketing, and increased joint solution development."

The Siebel/Applicast customer base now includes leading organizations such as Acta Technology, Commtouch, CoSine Communications, Documedics, Identix, PCTEL, Proxim and Tumbleweed Communications. Commented James D. Berkman, director of client services at Commtouch, "With a Siebel solution outsourced by Applicast, we received powerful technology, comprehensive service and rapid deployment. Applicast has a first-class team managing our systems. We can now focus on our business and not on the software running it."

About Siebel Systems

Siebel Systems, Inc. (Nasdaq:SEBL) is the world's leading provider of eBusiness applications software. Siebel Systems provides an integrated family of eBusiness application software enabling multi-channel sales, marketing and customer service systems to be deployed over the Web, call centers, field, reseller channels, retail and dealer networks. Siebel Systems' sales and service facilities are located in more than 28 countries. For more information, please visit Siebel's Web site at www.Siebel.com.

About Applicast

Based in Menlo Park, Applicast, Inc. is the premier, total-solution ASP for aggressive-growth companies. Bringing customers the power of top-tier business software without the pain, the Applicast Business Applications Network offers full-service application outsourcing for mission-critical applications, such as SAP R/3 and Siebel eBusiness Applications, over secure private or Internet connections. Applicast's unique combination of a world-class application portfolio, targeted FastFit(TM) solutions and full-lifecycle service enables its clients to slash the time, costs and risks of deploying top-tier systems.

To power its Business Applications Network, Applicast has developed relationships with SAP, Siebel Systems, Vitria Technology, Agile Software, BMC Software and GTE Data Services. Applicast is privately funded by leading investment organizations, including Trinity Ventures, Piper Jaffray Ventures, Bowman Capital Management, Crescendo Ventures, Bluewater Capital Management, Sippl Macdonald Ventures and MKS Ventures. More information is available at www.applicast.com.

Note to Editors: Applicast, the Applicast logo design, FastFit and Applicast Business Applications Network are trademarks of Applicast, Inc. All other company and product brand names are trademarks or registered trademarks of their respective companies.