Contacts:
Steve Harrington
Double-Take Software
508-229-8878
dpryor@doubletake.com

Andrea Krull
Racepoint Group, Inc.
781-487-4639
sharrington@doubletake.com

Double-Take® Software Offers Accelerated Application and Data Protection for Remote Offices

Company Joins Citrix® Ready Program

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Southborough, Mass. – October 22, 2007 –Double-Take® Software (NASDAQ: DBTK) today announced that it is teaming up with Citrix to create an enhanced IT productivity and data protection solution to accelerate server applications. Double-Take Software is a Citrix Ready™ partner, whose solution has been validated with Citrix WANScaler™. The integrated solution allows new and existing customers to optimize and protect business applications remotely using Double-Take with Citrix WANScaler.

This integrated solution optimizes customers’ critical data and enhances high availability, a component especially critical during disaster recovery. Employees of customers taking advantage of this partnership will be able to remain connected remotely in the event of a disaster, eliminating downtime and lost productivity.

Double-Take provides patented replication and failover technology that continuously captures byte-level changes in real-time and replicates those changes to local or remote servers. Citrix WANScaler provides highperformance application delivery to branch offices, datacenters and mobile workers, by eliminating the inefficiencies often found in long-haul wide-area network links. Double-Take in conjunction with WANScaler accelerates replication speeds and protects critical data without reducing the bandwidth for other critical applications or adding new WAN lines.

Double-Take Software’s participation in the Citrix Ready Program brings additional peace of mind to our joint customers who benefit from two worldclass solutions that complement each other to protect their most valuable assets,” said David Jones, Corporate Vice President, Business Development at Citrix.

This relationship presents an outstanding opportunity for our end-user community tap into the best technology by Double-Take Software and Citrix in one offering,” said Kevin Kelly, President of Agile360. “The offering provides the best in IT acceleration and data protection available on the market from two of the most trusted global brands.

To learn more about the combined Double-Take and WANScaler solution, please refer to the Citrix Ready solution site: http://www.citrix.com/English/ps2/citrixready/product.asp?contentID=68047 2

Double-Take Software will exhibit at iForum 07 The App Delivery Expo, presented by Citrix, in Las Vegas, Nevada, on October 22-25, 2007. To learn more about the Citrix App Delivery Expo please visit: http://www.citrixevents.com

About Citrix Ready

Citrix Ready™ identifies recommended solutions that are trusted to enhance the Citrix application delivery infrastructure. All products featured in Citrix Ready have completed verification testing thereby providing confidence in joint solution compatibility. Leveraging our industry leading alliances and partner eco-system, Citrix Ready showcases select trusted solutions designed to meet your various business needs. Through the online catalog and Citrix Ready branding program, you can easily find and build a trusted infrastructure. Citrix Ready not only demonstrates current mutual product compatibility, but through our continued industry relationships also ensures future interoperability. Learn more at www.citrixready.com.


About Double-Take® Software
Headquartered in Southborough, Massachusetts, Double-Take® 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 forwardlooking 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 forwardlooking 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 statements at any time.© 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. 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 are the property of their respective companies.

All rights reserved. Double-Take, GeoCluster, and NSI are registered trademarks of Double-Take Software, Inc. Balance, Double-Take for Virtual Systems and Double- Take ShadowCaster are trademarks of Double-Take Software, Inc. Microsoft, Windows, and the Windows logo are trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. Citrix®, Citrix Ready™ and Citrix WANScaler™ are trademarks of Citrix Systems, Inc. and/or one or more of its subsidiaries, and may be registered in the U.S. Patent and Trademark Office and in other countries. All other trademarks are the property of their respective companies.