Double-Take® Software and Silver Peak Systems Discuss How to Build a Better Business Continuity Plan Using Virtualization and WAN Acceleration

Business Wire, May 9, 2007

With storage systems growing at 50 percent a year, administrators are finding it extremely difficult to manage - let alone recover - data quickly and effectively between remote sites connected by a wide area network (WAN.) If a disaster or outage occurs, companies can lose both time and information. Because of this, companies need to learn how to develop and manage a successful disaster recovery and business continuity plan.

To address these needs, Double-Take[R] Software and Silver Peak Systems have come together to offer an informative Lunch 'N Learn seminar series, which focuses on strategies for disaster recovery planning. Two successful seminars in Chicago and New York City allowed senior managers and executives to hear real-world end-user stories, including lessons learned and best practices on how to maximize business continuity plans. Due to high demand, Double-Take Software and Silver Peak Systems will continue the seminar series through June 2007.

In addition to the seminar series, Double-Take Software, Silver Peak Systems and VMware recently teamed up to present "The Big Picture in Disaster Recovery," a webinar outlining how to "put the pieces together" for an effective disaster recovery plan. This webinar discussed new trends in data protection technology that span all areas of IT, cites specific examples of how real-world customers have put combined DR solutions into practice for improved business continuity. To view this on-demand webinar, please visit www.doubletake.com/webinars or www.silver-peak.com/infocenter.>

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About Double-Take[R] Software

Headquartered in Southborough, Massachusetts, Double-Take[R] Software (Nasdaq: DBTK) is a leading provider of affordable software for recoverability, including continuous data replication, application availability and system state protection. Double-Take Software products and services enable customers to protect and recover business-critical data and applications such as Microsoft Exchange, SQL, and SharePoint in both physical and virtual environments. With its unparalleled partner programs, technical support, and professional services, Double-Take Software is the solution of choice for more than ten thousand customers worldwide, from SMEs to the Fortune 500. Information about Double-Take Software's products and services can be found at www.doubletake.com.

This release includes forward-looking statements intended to qualify for the safe harbor from liability established by the Private Securities Litigation Reform Act of 1995. These forward-looking statements generally can be identified by phrases that say Double-Take or its management "believes," "expects," "anticipates," "foresees," "forecasts," "estimates" or other words or phrases of similar import. Similarly, statements in this release that describe the Company's business strategy, outlook, objectives, plans, intentions or goals also are forward-looking statements. All forward-looking statements are inherently speculative, and are subject to risks and uncertainties that could cause actual results to differ materially from those anticipated in forward-looking statements. These risks and uncertainties include those set forth from time to time in our filings with the Securities and Exchange Commission. We are under no obligation, and do not undertake any duty, to update these forward looking statements at any time.

(c) Double-Take Software. All rights reserved. Double-Take, GeoCluster, and NSI are registered trademarks of Double-Take Software, Inc. Balance, Double-Take for Virtual Systems, Double-Take for Virtual Servers and Double-Take ShadowCaster are trademarks of Double-Take Software, Inc. Quest, Quest Software and LiteSpeed are trademarks and registered trademarks of Quest Software, Inc. in the United States and/or other countries. Microsoft, Windows, and the Windows logo are trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. All other trademarks and registered trademarks are the property of their respective owners.

About Silver Peak Systems, Inc.

Silver Peak improves backup, replication and recovery between data centers and facilitates branch office server and storage centralization by improving application performance across the Wide Area Network (WAN). The company's award winning NX appliances deliver exceptional performance improvements with unprecedented security and scalability across all enterprise applications, including data replication, backup, file transfers, email, web and real-time applications such as Citrix and VoIP. For more information, visit http://www.silver-peak.com/infocenter.> NOTE: Silver Peak Systems, the Silver Peak logo, Network Memory and Silver Peak NX Series are trademarks of Silver Peak Systems, Inc.

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