Citrix NetScaler Gains Market Share in Application Delivery Controllers Market.

New Report from Leading Research Firm Shows Citrix Continuing to Gain Ground in $1B Application Delivery Controller Market

FORT LAUDERDALE, Fla. -- Citrix Systems, Inc. (Nasdaq:CTXS), the global leader in application delivery infrastructure, today announced continued revenue growth and market share gains in the application delivery controller (ADC) worldwide market according to a new report from Gartner titled, "Market Share: Application Acceleration Equipment, Worldwide, 1Q07"1. From Q406 to Q107 the Citrix[R] NetScaler[R] web application delivery product line posted market share gains in both the overall $1 billion application delivery controller segment as well as the advanced platform application delivery controller (AP-ADC)2 sub-segment.

Growing enterprise customer demand for highly integrated solutions with greater scalability and fault tolerance has become a key driver in the evolution of the web application delivery market. At the same time, the emergence of new technology trends such as Web 2.0, enterprise mash-ups and services-oriented architectures (SOA), are bringing more diversity and complexity to enterprise application environments. With market-leading application layer performance, Citrix NetScaler has an established track record of delivering many of the world's most demanding and high-profile web applications, making it a proven choice for enterprises of all sizes that want to accelerate the performance of business-critical web applications, secure sensitive application data and lower the cost of delivering web applications to any user in any location.

The most recent NetScaler 8.0 release continues to push new standards in controlling application and user specific policies with its AppExpert Policy Framework, and built-in end user experience monitoring, as well as becoming the first application delivery controller on the market to offer a fully integrated SSL VPN and web application firewall. These advances give administrators unprecedented control over the entire web application delivery process and enable them to improve the experience of corporate application users, no matter how complex the environment.

"We are pleased to see customers turning to the Citrix NetScaler product line in growing numbers to meet their application delivery needs," said Sanjay Uppal, Citrix vice president of marketing, Application Networking Group. "We believe our continued ability to gain share in this highly competitive market is a testament to the ability of the NetScaler product line to deliver web-based applications with the fastest performance, best security and lowest total cost of ownership while empowering our customers to keep pace with growing application complexity and rapidly rising user expectations."

About Citrix NetScaler

Citrix NetScaler optimizes the delivery of web applications -- accelerating performance, increasing security, and improving web server capacity. This approach ensures the best total cost of ownership (TCO), security, availability, and performance for web applications. The Citrix NetScaler solution is a comprehensive network system that combines high-speed load balancing and content switching with state-of-the-art application acceleration, layer 4-7 traffic management, data compression, dynamic content caching, SSL acceleration, network optimization, and robust application security into a single, tightly integrated solution. Deployed in front of web and application servers, the system significantly reduces processing overhead on application and database servers, reducing hardware and bandwidth costs.

About Citrix

Citrix Systems, Inc. (Nasdaq:CTXS) is the global leader and the most trusted name in application delivery infrastructure. More than 180,000 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% of the Fortune 100 companies and 98% of the Fortune Global 500, as well as hundreds of thousands of small businesses and prosumers. Citrix has approximately 6,200 channel and alliance partners in more than 100 countries. Annual revenue in 2006 was $1.1 billion.

For Citrix Investors

This release contains forward-looking statements which are made pursuant to the safe harbor provisions of Section 21E of the Securities Exchange Act of 1934. The forward-looking statements in this release do not constitute guarantees of future performance. Those statements involve a number of factors that could cause actual results to differ materially, including risks associated with revenue growth and recognition of revenue, products, their development and distribution, product demand and pipeline, economic and competitive factors, the Company's key strategic relationships, acquisition 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.

(c)2007 Citrix Systems, Inc. All rights reserved. Citrix[R] and NetScaler[R] are registered trademarks of Citrix Systems, Inc. and/or one or more of its subsidiaries, and may be registered in the United States Patent and Trademark Office and in other countries. All other trademarks and registered trademarks are property of their respective owners.

(1) Market Share: Application Acceleration Equipment, Worldwide, 1Q07, Joe Skorupa and Nhat Pham, June 2007, Gartner, Inc.

(2) Market Share: Application Acceleration Equipment, Worldwide, 1Q07, Joe Skorupa and Nhat Pham, June 2007, Gartner, Inc.