Citrix Extends 20-Year Partnership with Microsoft into Server Virtualization with “Project Encore”

Citrix Essentials Will Offer Advanced Virtualization Management for Microsoft Windows Server 2008 Hyper-V

BOSTON - Taking a page from a successful 20-year partnership in application and desktop virtualization, Citrix Systems, Inc. (Nasdaq: CTXS) today announced “Project Encore,” extending its collaboration with Microsoft into the adjacent server virtualization market. As part of this strategic alliance, Citrix unveiled the availability of a new solution called Citrix Essentials™ for Microsoft® Hyper-V™, offering advanced virtualization management capabilities for Microsoft® Windows Server® 2008 Hyper-V to help customers create highly scalable, manageable and agile virtual infrastructures (please also see today’s separate announcement of the Citrix Essentials product line). The new solution will extend the enterprise management capabilities of Windows Server 2008 Hyper-V and System Center in the areas of storage management, provisioning services, and lab automation. To accelerate broad availability to Microsoft Hyper-V customers, Citrix will make Essentials for Microsoft Hyper-V available to both Citrix and Microsoft resellers worldwide and collaborate with Microsoft on marketing and training activities.

“Citrix Essentials for Hyper-V will enable Microsoft customers to obtain even more value from their investments in the Windows platform and Microsoft virtualization solutions,” said Mike Neil, general manager, virtualization strategy at Microsoft Corp. “We see Citrix Essentials as a powerful extension that enables customers to accelerate their Hyper-V adoption in the enterprise in much the same way Citrix XenApp has extended the Windows Server platform for nearly 20 years in the application delivery arena. Microsoft also will work to ensure that a future release of Microsoft System Center will support Citrix XenServer for customers with mixed Hyper-V and XenServer environments.”

Extending the Value of Microsoft Hyper-V and System Center
Citrix Essentials for Microsoft Hyper-V provides customers with a powerful set of advanced virtualization management capabilities that extend the enterprise management capabilities of Hyper-V and System Center to help make virtualized environments more scalable, more manageable and more agile. Citrix Essentials for Hyper-V includes:

* Advanced Storage Integration using Citrix® StorageLink™ technology makes it easy for Hyper-V and Microsoft System Center customers to fully leverage all the native power of their existing array-based storage systems.
* Dynamic Provisioning Services lets customers centrally manage a common set of master images, which can be streamed on-demand into Hyper-V virtual machines or physical servers.
* Hypervisor Interoperability makes it easy for customers to manage virtual machines across heterogeneous Hyper-V and XenServer™ environments.
* Automated Lab Management enables Hyper-V customers to develop, test, and deliver applications faster by automating and simplifying the entire virtual machine lifecycle, including movement across virtualization platforms.

“Citrix and Microsoft have a long track record of working together to add value on top of the Windows platform,” said Frank Artale, group vice president, worldwide business development, Citrix Systems. “Our partnership on the client side has improved desktop computing for 200,000 companies and more than 100 million end users worldwide. We are excited to officially extend this partnership into the server virtualization arena today, opening the next chapter in one of the most successful partnerships in industry history.”

Pricing and Availability
Citrix Essentials for Hyper-V will be available through channel partners on April 7, 2009. Suggested retail pricing will begin at $1,500 per physical server. Microsoft Hyper-V is currently available as part of Windows Server 2008 Standard, Enterprise, and Datacenter editions, as well as a standalone hypervisor Microsoft Hyper-V Server 2008. For more information, please visit: http://www.citrix.com/essentials

About Citrix Systems, Inc.
Citrix Systems, Inc. is the global leader and the most trusted name in Application Delivery Infrastructure. More than 215,000 organizations worldwide rely on Citrix to deliver any application to users anywhere with the best performance, highest security and lowest cost. Citrix customers include 100 percent of the Fortune 100 companies and 99 percent of the Fortune Global 500, as well as hundreds of thousands of small businesses and prosumers. Citrix has approximately 8,000 partners in more than 100 countries. 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.