Version 7.1 Introduces Support for IPv6, Providing Greater Performance and Reliability

WALTHAM, MA – Feb 26, 2007

Ardence, a Citrix company (Nasdaq:CTXS) and a leader in developing software platforms for the ondemand world, today announced the availability of version 7.1 of Ardence RTX , its market-leading real-time software solution.

RTX 7.1, with continued support of multi-core architectures, also includes support for IPv4 and IPv6 by incorporating the Fusion Networking Stack from Unicoi. Developed from the ground up for embedded systems, the Fusion Networking Stack is a scaleable, highly portable protocol solution written in 100% ANSI C language, and is processor, operating-system and compiler independent. With support for IPv6, the Fusion Networking Stack improves TCP transport algorithms and offers a device driver filter layer. Additionally, it provides a platform for next-generation Internet functionality, including support for real-time flows, provid er selection, host mobility and end-to-end security.

"We are pleased that Ardence has chosen Unicoi’s Fusion Networking Stack to accelerate the development and deployment of their RTX product line," said Greg Coonley, CEO of Unicoi Systems. "For over twenty years, the Fusion Networking Stack has set the standard for performance, reliability and stability. Ardence’s selection of Unicoi reflects the strength of our technology and our ongoing commitment to deliver products that improve productivity and speed time to market."

RTX provides functionality that gives developers deterministic control of Windows-based systems that require a high level of performance and scalability. RTX allows developers to reduce system costs, improve reliability, speed the time to market and increase the performance of their applications.

Additional features introduced in RTX version 7.1 include:

"The enhancements we’ve made to RTX continue to enable customers to design for where technology is going, not where it has been, " said Stephen Woodard, vice president, product line executive, embedded systems for Ardence. "By researching technology trends, listening to customer demands, and hiring the brightest minds in the industry, we're ensuring that RTX provides the ultimate control solution for x86 platforms that run Windows."

RTX is deployed widely in industrial automation, military and aerospace, simulation, robotics, test and measurement and medical devices. As a COTS-based software solution, RTX can enable the elimination of costly and aging proprietary hardware-based systems. Evaluation versions of RTX can be downloaded at no cost.

Ardence, a Citrix Company Ardence, a Citrix Company, develops software platforms for the on-demand world. The Ardence Software-Streaming Platform increases IT agility by delivering operating systems and applications on-demand from the network to desktops, servers and devices. T he Ardence Embedded OEM Development Platform delivers market-leading operating system control capabilities that enable OEMs to increase system performance and manageability.

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, h ighest 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 partne rs in more than 100 countries. Annual revenue in 2006 was $1.1 billion.

Citrix, Ardence and RTX are trademarks of Citrix Systems, Inc. and/or one or more of its subsidiari es, 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.

last update: 15.08.2008

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