Quest Software to Present at Cowen & Company 20/20 Conference

Business Wire, May 23, 2008

ALISO VIEJO, Calif. -- Quest Software, Inc. (Nasdaq:QSFT) today announced that Scott Davidson, senior vice president and chief financial officer, Quest Software, will be a guest presenter at Cowen & Company 20/20 TMT Conference being held at the New York Palace in New York City May 28 - 30. Davidson's presentation is scheduled for May 29th at 10:15 a.m. Eastern Daylight Time.

An audio-only Webcast of the presentation will be available simultaneously and for the following 12 months via the Investor Relations section of the Quest Software website.

About Quest Software, Inc.

Quest Software, Inc., a leading enterprise systems management vendor, delivers innovative products that help organizations get more performance and productivity from their applications, databases, Windows infrastructure and virtual environments. Through a deep expertise in IT operations and a continued focus on what works best, Quest helps more than 90,000 customers worldwide meet higher expectations for enterprise IT. Quest provides customers with client management as well as server and desktop virtualization solutions through its subsidiaries, ScriptLogic, Vizioncore and Provision Networks. Quest Software can be found in offices around the globe and at www.quest.com.

Quest and Quest Software 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.

Web Links Referenced in this Release:

Quest Software, Inc. - www.quest.com

Investor Relations - http://phx.corporate-ir.net/phoenix.zhtml?c=95476&p=irol-irhome