Quest Software's JProbe Brings Sophisticated New Memory Analysis Tools to Java Developers.

Business Editors/High-Tech Writers

IRVINE, Calif.--(BUSINESS WIRE)--March 30, 2004

New Investigative Features Tackle a Leading Cause of Performance and Stability Problems in J2EE and Java Code - Memory Issues

Quest Software, Inc. (Nasdaq: QSFT), a leading provider of application management solutions, today announced the availability of the latest release of Quest JProbe(R) Suite, featuring unique new memory analysis tools that enable J2EE and Java developers to resolve complex memory-related problems in their Java and J2EE applications faster than ever before. Along with significant enhancements in usability, automation and supported platforms, Quest JProbe continues to provide the most innovative performance tuning toolkit for Java application, servlet, JSP and EJB code.

"We have found that memory issues are the leading cause of performance and stability issues in Java today - even a small, well-hidden memory leak can be catastrophic under the high volume user loads of critical business applications. That's why this release of JProbe focuses on making it easier for developers to diagnose more complex memory problems in their code," said Larry Humphries, vice president of development solutions, Quest Software. "This kind of innovation is why Java developers worldwide continue to rely on Quest JProbe as the leading tool for deep code diagnostics."

Quest JProbe is a complete performance tuning toolkit for Java code, providing powerful Java performance profiling, memory debugging, code coverage and thread analysis capabilities in one conveniently integrated suite. Graphically depicting everything from memory usage to calling relationships, Quest JProbe helps developers understand precisely what is causing problems in Java applications - right down to the offending line of source code. The key new features in this release include:

-- Powerful new memory investigation tools such as the all-new

Aggregate Memory Footprint feature, which determines the

hidden memory costs of creating an object.

-- New Ant integration tasks and enhanced Trigger facility

enables developers to better automate collection of

performance data, such as during nightly builds.

-- Ease-of-use improvements throughout the suite, such as

improved collection set-up, standardized "Start/Finish Use

Case" buttons on all tools, and more reporting features.

-- Continued industry-leading environment, platform, IDE and Java

VM support including support for BEA JRockit JVM and 64-bit

Windows, Linux and HP-UX Itanium-based Java platforms.

"JProbe Memory Debugger has really helped us get to the root cause of memory issues in our application," said Andreas Schonknecht, software engineer, TUI InfoTec. "Quest JProbe has what we need to quickly resolve even tricky problems in our Java code."

Quest JProbe is part of the Quest Application Performance Management Suite for the J2EE platform, a unique integrated solution for managing J2EE applications throughout the performance lifecycle. Combining business-centric application views with deep domain-centric diagnostic tools for every expert, the Quest APM Suite for the J2EE platform accelerates detection, diagnosis and resolution of business-threatening performance issues to help companies improve the scalability and availability of their J2EE applications.

Pricing and Availability

Quest JProbe Suite 5.2 is available now with pricing starting at $2,000. For additional information on JProbe, or to obtain a free evaluation copy, please visit http://www.quest.com/jprobe.

About Quest Software, Inc.

Quest Software, Inc., a leader in application management, provides software for Application Confidence to 18,000 customers worldwide, including 75 percent of the Fortune 500. Quest products for database management, application performance management and Microsoft infrastructure management help customers develop, deploy, manage and maintain enterprise applications without expensive downtime or business interruption. Headquartered in Irvine, Calif., Quest Software can be found in offices around the globe and at www.quest.com.

Quest, Quest Software and JProbe are registered trademarks of Quest Software, Inc. The Quest Software logo and all other Quest Software product or service names and slogans are registered trademarks or trademarks of Quest Software, Inc. All other trademarks and registered trademarks are property of their respective owners.

Forward Looking Statements

This release may include predictions, estimates and other information that might be considered forward-looking statements, including statements concerning the availability and market acceptance of our new release of JProbe. These statements are based on current expectations and assumptions that are subject to risks and uncertainties. Actual results could differ from those anticipated as a result of various factors, including the impact of economic conditions on our customers, variations in the size and timing of customer orders; competitive products and pricing; rapid technological change; risks associated with the development and market acceptance of new products; disruptions caused by acquisitions of companies and/or technologies including risks relating to integration of the combined companies; risks associated with international operations; and the need to attract and retain qualified personnel. For a discussion of these and other related risks, please refer to our recent SEC filings, including our Annual Report on Form 10-K for the year ended December 31, 2003. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date thereof. We undertake no obligation to update forward-looking statements to reflect events or circumstances after the date thereof.