SilverStream Software Announces New Versions of jBroker Middleware Solutions For Java and Web Services-based Applications.

Business/Technology Editors

BILLERICA, Mass.--(BUSINESS WIRE)--Dec. 4, 2001

High-performance Messaging Solutions Offer Improved Functionality

and Performance

SilverStream Software, Inc. (Nasdaq: SSSW) today announced the availability of new versions of its jBroker(R) products including jBroker Web 1.1, jBroker ORB 4.0, and jBroker MQ 2.0, as well as the initial release of the distributed transactions component of the jBroker suite, jBroker TM 1.0 (see related announcement issued December 4, 2001). SilverStream's jBroker products provide organizations with a range of high-performance middleware solutions and are available independently or as part of the SilverStream eXtend(TM) Application Server.

"Businesses today need powerful middleware solutions that are interoperable, flexible and standards-based to help solve complex business problems," said Rohit Garg, vice president of Java technologies for SilverStream Software. "The new line of jBroker products provides customers and partners with the required technology to build secure transactional applications that address these issues."

jBroker Web is the Web Services component of the jBroker product suite and consists of a portable Web Services engine designed to build, run and invoke Web Services using Java. The 1.1 release of jBroker Web provides additional support for interoperability including Microsoft .NET. Other new functionality includes:

-- Support for document style WSDL SOAP binding and UDDI interoperability

-- Wizard for generation of remote interfaces and WSDL

-- Automatic schema compilation for built in marshalers

jBroker ORB is the CORBA compliant Object Request Broker component of the jBroker platform and provides many features for developing, deploying and managing large-scale distributed Java applications. The 4.0 release contains features necessary for J2EE 1.3 compatibility and interoperability with other J2EE compliant ORBs, including:

-- Clustering for load balancing and fail over

-- IIOP implementation upgraded to v1.2

-- Internet client support by tunneling IIOP over HTTP

-- Common Secure Interoperability (CSIv2) level 0

-- Server monitoring APIs

-- Object Transaction Service v1.2 ready

jBroker MQ is the Java Messaging Service (JMS) compliant Messaging and Queuing component of the jBroker product suite based on IIOP support provided by the jBroker ORB. The 2.0 release of jBroker MQ has additional features for improved reliability and scalability. New functionality in jBroker MQ 2.0 includes:

-- Clustering for load balancing and fail over

-- Enhanced memory management

-- Internet client support using HTTP transport

-- Auto-restart of JMS process on Java VM failure

-- Scheduled message delivery

-- Individual message acknowledge mode

jBroker TM (transaction manager) is the distributed transactions component of the jBroker platform, providing customers and partners with a solution that addresses the Java Transaction Service (JTS) requirement of the latest release of the J2EE specification v.1.3. For a complete list of features, please see the related announcement issued December 4, 2001.

jBroker Console is the new visual monitoring tool for jBroker ORB, jBroker MQ, and jBroker TM. The jBroker Console offers the following functionality:

-- Ability to monitor jBroker ORB properties, including objects,

requests, connections and threads

-- Ability to monitor jBroker MQ properties, including

destinations, messages, consumers and transactions

-- Ability to monitor jBroker TM properties, including started,

committed, and rolled-back transactions

-- Ability to create custom console configurations

Pricing and Availability

The SilverStream jBroker product suite of enterprise class Java and XML based middleware products are available for download at http://software.silverstream.com. jBroker TM and jBroker Web are provided free of charge, jBroker ORB is priced at $995, and jBroker MQ at $1,995. For organizations interested in licensing jBroker products for commercial distribution please call 978-262-3001, or email [e-mail] for more information.

About SilverStream Software, Inc.

SilverStream Software, Inc. (Nasdaq: SSSW) provides the first comprehensive integrated services environment to simplify and accelerate the development of sophisticated business applications. SilverStream's proven technology is based on the best of Java, XML, and Web Services, and enables businesses to unlock the potential of existing systems and rapidly deliver business applications to the Web. SilverStream powers business operations for more than 1,500 customers worldwide including Amerisure Insurance, Home Depot, the Chicago Stock Exchange, Samsung Electronics, Sears and US Cellular. SilverStream's worldwide partner network includes system integrators, independent software vendors, application service providers and other strategic partners such as Cap Gemini Ernst & Young, Compaq, Deloitte & Touche, Hewlett Packard, IBM, Intel, Mercury Interactive, Microsoft, Oracle and Sun Microsystems.

SilverStream Software is headquartered in Billerica, Mass. with offices throughout the world. For more information, please visit http://www.silverstream.com.

SilverStream and jBroker are registered trademarks and SilverStream eXtend is a trademark of SilverStream Software, Inc. All other names are trademarks or registered trademarks of their respective owners.