Citrix Desktop Virtualization Helps NASA Astronauts Stay in Touch with Family and Friends from Space

Citrix XenDesktop Enables First Tweet from Space
SANTA CLARA, Calif.--(Business Wire)--
Citrix Systems, Inc. announced today thatNASA has incorporated Citrix XenDesktop
with high-definition HDX technology into the recently launched Crew Support LAN,
which provides astronauts on the International Space Station (ISS) with direct,
private access to familiar desktop applications and websites from any location,
including outer space. The new network incorporates virtual desktops powered by
XenDesktop and WAN optimization technology from Citrix Branch Repeater to ensure
simpler communications that are both reliable and secure. The project is part of
a broader effort to enhance the quality of life of astronauts during
long-duration missions by helping to ease the isolation associated with life in
a closed environment.

The system was first used last month by Expedition 22 Flight Engineer T.J.
Creamer when he posted the first unassisted update to his Twitter account from
space. Previously, limited bandwidth and significant latency meant that Tweets
had to be emailed to the ground and shared manually with ground personnel before
they could be sent to the astronaut`s family members. The new desktop
virtualization solution gives the ISS crew unprecedented, direct access to vital
personal communications tools such as Twitter and the ability to browse the web,
while mitigating the existing latency of network communication from space.

With XenDesktop, virtual desktops are managed and secured centrally in the
datacenter located on the ground, and can be accessed by the ISS crew using
laptops located on the space station. XenDesktop with Branch Repeater help
optimize the delivery of virtual desktops and applications to the ISS crew,
dramatically reducing bandwidth requirements and optimizing performance for high
latency satellite communications. Astronauts simply connect their laptop to a
power source on board and log in to receive a familiar Windows desktop
experience that`s personalized to each user, and makes it easy to securely
access any application, including personal email as well as popular internet
sites like Twitter.

"We are extremely proud to be partnering with NASA to enable the ultimate
virtual desktop solution over high latency satellite connection," said Tom
Simmons, area vice president, Public Sector, for Citrix. "We are pleased to play
a role in making the distance between the astronauts on the ISS and those of us
on the ground just a little shorter. With this project we`ve proven that our
desktop virtualization solutions can deliver desktops to anyone, anywhere,
anytime, even under the most unique and challenging conditions."

About Citrix Systems

Citrix Systems, Inc. (NASDAQ:CTXS) is a leading provider of virtual computing
solutions that help companies deliver IT as an on-demand service. Founded in
1989, Citrix combines virtualization, networking, and cloud computing
technologies into a full portfolio of products that enable virtual workstyles
for users and virtual datacenters for IT. More than 230,000 organizations
worldwide rely on Citrix to help them build simpler and more cost-effective IT
environments. Citrix partners with over 10,000 companies in more than 100
countries. Annual revenue in 2009 was $1.61 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, XenDesktop, Branch Repeater and HDX technology and 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 are property of their respective owners.

Citrix Systems, Inc.
Jason Wyse, 786-449-3740
jason.wyse@citrix.com
or
Boscobel Marketing Communications, Inc.
Melissa Templeton, 301-588-2900
mtempleton@boscobel.com

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