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Citrix Delivers XenServer 5.5 as Downloads of Free Enterprise-Class Virtualization Surge


New XenServer Central Community Website Offers Extensive Resources for Rapidly Growing XenServer Installed Base

BOSTON - Citrix Systems, Inc. (Nasdaq: CTXS) today announced the immediate availability of Citrix XenServer™ 5.5, a significant new upgrade that raises the bar once again for free, enterprise-class virtualization. Today’s announcement comes just 75 days after Citrix changed the game in server virtualization by making the full enterprise-class XenServer platform available for unlimited production deployment at no charge. Unlike basic hypervisors that have been free for years, XenServer sets an entirely new standard for free virtualization with powerful features such as centralized multi-node management, built-in storage and full live motion. In the short period of time since its release, more than 100,000 customers have downloaded XenServer from hundreds of download sites in over 50 countries worldwide with overwhelmingly positive feedback. The new XenServer 5.5 release, available for download today, provides these customers even more value by adding a wide range of new enterprise management capabilities at no additional charge.

“Making XenServer free was not a one-time publicity move. It was an integral part of our strategy to accelerate the rate of virtualization adoption and address the more than 75 percent of servers that still have not been virtualized today,” said Peter Levine, senior vice president and general manager, Virtualization Management Division, Citrix Systems. “The new XenServer 5.5 release is a clear demonstration that Citrix will continue investing heavily in making XenServer the most compelling open virtualization platform on the market today. The overwhelming download numbers we have seen in the last two months demonstrate that many customers are not happy with the growing cost and complexity of their existing virtualization solutions. By combining the free XenServer with the advanced management capabilities in Citrix Essentials, customers now have a proven alternative that meets all the requirements for enterprise-class virtualization at a fraction of the cost.”

Adding More Value to Free Enterprise-Ready Virtualization
The XenServer 5.5 release available for download today adds a wide range of new features that enable easier virtualization management and broader integration with enterprise systems. The latest version now includes features such as consolidated backup, enhanced conversion and search tools, Active Directory integration and expanded guest support for virtually every version of Windows and Linux operating systems. With the new 5.5 release, XenServer provides all the functionality that typically costs up to $5,000 per server with other leading virtualization products.

Also available today is the new 5.5 release of Citrix Essentials™ for XenServer and Hyper-V™, providing advanced virtualization management capabilities for customers using Citrix XenServer or Microsoft® Windows Server® 2008 Hyper-V. Citrix Essentials 5.5 enhances both of these high-growth virtualization platforms by adding expanded storage integration, automated lab and stage management and dynamic workload balancing.

More information on XenServer and Citrix Essentials can be found at

New Online Community Website for Growing XenServer Customer Base
In addition to the availability of the 5.5 product releases, Citrix also today announced the XenServer Central community website, a new resource for all things XenServer to help users enhance their use of the free enterprise-ready virtualization platform. The XenServer Central website will feature the latest product information, tips and tricks, access to the Citrix KnowledgeCenter and web-based support forums. Offers from Citrix Ready™ partners for free or discounted licenses for complementary products will also be featured, as well as the latest XenServer content on CitrixTV, Twitter and the blogosphere. XenServer Central will go live on June 19 at

Pricing and Availability
The new XenServer 5.5 release is immediately available for download at, as well as hundreds of other download sites worldwide. Citrix Essentials 5.5 for XenServer and Hyper-V are also available immediately for purchase or a 30-day trial version at Suggested pricing for Citrix Essentials starts at $2,500 per server, regardless of the number of processors.

About Citrix Systems, Inc.
Citrix Systems, Inc. (NASDAQ:CTXS) is a leading provider of virtualization, networking and software-as-a-service (SaaS) technologies for more than 230,000 organizations worldwide. Its Citrix Delivery Center™, Citrix Cloud Center™ (C3) and Citrix Online Services product families radically simplify computing for millions of users, delivering applications as an on-demand service to any user, in any location on any device. Citrix customers include the world’s largest Internet companies, 99 percent of Fortune Global 500 enterprises, and hundreds of thousands of small businesses and prosumers worldwide. Citrix partners with over 10,000 companies worldwide in more than 100 countries. Founded in 1989, annual revenue in 2008 was $1.6 billion.

For Citrix Investors
This release contains forward-looking statements which are made pursuant to the safe harbor provisions of Section 27A of the Securities Act of 1933 and of Section 21E of the Securities Exchange Act of 1934. The forward-looking statements in this release do not constitute guarantees of future performance. Investors are cautioned that statements in this press release, which are not strictly historical statements, involve a number of factors that could cause actual results to differ materially, including risks associated with the uncertainty in the IT spending environment and a downturn in economic conditions generally, revenue growth and recognition of revenue, products, their development and distribution, product demand and pipeline, competitive factors, the Company’s key strategic relationships, acquisitions and related integration risks as well as other risks detailed in the Company’s filings with the Securities and Exchange Commission. Citrix assumes no obligation to update any forward-looking information contained in this press release or with respect to the announcements described herein.

Citrix®, Citrix Cloud Center™, Citrix Delivery Center™, Citrix Essentials™, Citrix Ready ™ and XenServer™ 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 and registered trademarks are property of their respective owners.


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