Double-Take(R) Software Announces Microsoft(R) Windows(R) Logo Certifications.

Double-Take 4.5 and GeoCluster[R] 4.4 Withstand Rigorous Testing, Certified for Microsoft Windows Server Environments

SOUTHBOROUGH, Mass. -- Excelling in engineering superiority, Double-Take[R] Software today announced both Double-Take 4.5 and GeoCluster[R] 4.4 have been logo certified for Microsoft[R] Windows[R]. Rigorously tested by VeriTest[R], the testing service of Lionbridge (Nasdaq: LIOX), against Microsoft's exacting standards, these logo certifications verify that Double-Take Software solutions are secure, manageable and run reliably in Windows server environments.

"Double-Take 4.5 and GeoCluster 4.4 have achieved Datacenter certification, the highest certification level set forth by Microsoft," said Steve Nemzer, Vice President, Global Development and Testing Solutions at Lionbridge. "Using procedures we co-developed with Microsoft, the products successfully withstood a series of precise testing and are now qualified to use the "Certified for Microsoft Windows logo."

Double-Take and GeoCluster underwent a 48-hour stress test on a 32-way configuration; experienced a 24-hour crash recovery and fault tolerance test; and were audited for 24x7 live technical support. The full certification results earned by Double-Take 4.5 and GeoCluster 4.4 may be viewed in the VeriTest Catalog of Windows Certified Server Applications http://cert.veritest.com/CfWreports/server/

"These certifications further emphasize Double-Take Software's strengths - product excellence, strong partnerships and outstanding customer support," said Bob Roudebush, director of solutions engineering at Double-Take Software. "We've always strived to offer our customers software solutions that provide them the highest level of recoverability and we're not going to stop. We'll continue to create partnerships with industry leaders and develop products that meet the highest standards of our customers and the storage community, as a whole."

"Our clients are looking for solutions that meet their needs and budgets, but also that are documented and familiar," added Kevin Kelly, Executive Vice President at Agile360, a technology consulting and engineering firm. "Double-Take and GeoCluster Microsoft Datacenter certifications will help them stand out among other solutions, making them more appealing to our clients who are looking for top-notch data protection."

Double-Take 4.5 Features

Now generally available to customers, Double-Take 4.5 combines several product feature packs into one product and continues to refine the level of data protection, ease of use and recoverability of Double-Take. New features and enhancements include:

* Support for 64-bit Operating Systems - Including x64 platforms and Itanium servers;

* Integration with Microsoft Volume Shadow Copy Service -Offering automatic and scheduled snapshots of the target data;

* Target Path Blocking - Allowing customers to ensure that users are not modifying the target side data by accident; and

* Integration with Double-Take Application Manager - DTAM v4.1.2 is included on the shipping CD and when installed on a Double-Take server, can be launched from within the Double-Take Management Console.

About Double-Take[R] Software

Headquartered in Southborough, Massachusetts, Double-Take[R] Software [NASDAQ: DBTK] provides the world's most relied upon solution for accessible and affordable data protection for Microsoft[R] Windows[R] applications. The Double-Take product is the standard in data replication, enabling customers to protect and recover business-critical data that resides throughout their enterprise. With its partner programs and professional services, Double-Take delivers unparalleled data protection, centralized back-up, high availability, and recoverability. It's the solution of choice for thousands of worldwide customers, from SMEs to the Fortune 500 in the banking, finance, legal services, retail, manufacturing, government, education and healthcare markets. Double-Take is an integral part of their disaster recovery, business continuity and overall storage strategies. For more information, please visit 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 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. 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.