Partner Press Release
SilverStream Joins With Industry To Applaud RosettaNet Milestone

Pledges Ongoing Support to Consortium and Embraces Open Supply Chain Standards as Part of eConcert Event

For Release October 10, 2000

BILLERICA

SilverStream Software, Inc. (NASDAQ: SSSW), the eBusiness Platform Company, today renewed its commitment as a RosettaNet Solutions Partner, by supporting the organization's eConcert event, a week-long industry gathering to promote the successful real-world adoption of RosettaNet-based integration and supply chain solutions. Launched today, eConcert celebrates the significant momentum and industry support of the RosettaNet organization and standards.

SilverStream incorporates RosettaNet specifications into its eBusiness Platform for supplying industry-standard B2B integration solutions to customers. RosettaNet standards help customers rapidly build, deploy and connect to e-trading communities for globally dispersed supply chains and markets.

"Customers using the SilverStream eBusiness Platform can leverage RosettaNet standards to integrate and extend their supply chains, providing rapid integration and real-time connectivity to their production systems within an environment that's secure, scalable and fault-tolerant," said Fred Holahan, vice president and general manager of SilverStream Software's B2B Solutions Division. "The RosettaNet standard is an important part of SilverStream's eBusiness platform initiatives and we're committed to speeding its widespread adoption in the industry."

A long-time supporter of several important industry standards, such as Java 2 Enterprise Edition (J2EE), XML and SOAP, SilverStream became a RosettaNet Solutions Partner in August, 2000.

About RosettaNet
RosettaNet is an independent, self-funded, non-profit consortium dedicated to the development and deployment of standard electronic business interfaces to align the processes between supply chain partners on a global basis. Launched in June 1998, RosettaNet is currently in the pilot phase of its implementation cycle. More than 200 companies representing $1 trillion in annual information technology and electronic components revenues currently participate in RosettaNet's standards development, strategy, and implementation activities. A complete list of member companies and more information on RosettaNet is available at www.rosettanet.org

About SilverStream Software
SilverStream Software, Inc., The eBusiness Platform Company, delivers software and services that enable businesses to create, deploy and manage eBusiness applications. Used in corporations throughout the world, SilverStream Software products are changing the way business is being conducted in Global 2000 companies and large organizations such as ARCO, Ameritech, Bell Atlantic, Chevron, and the Chicago Stock Exchange.

SilverStream Software, http://www.silverstream.com, is publicly traded on the NASDAQ national market under the symbol (SSSW) and is based in Billerica, Massachusetts.