Citrix and Sierra Wireless Join Forces to Provide Wireless Access to Server-Based Applications On Any Device.

Business Editors/High Tech Writers

FORT LAUDERDALE, Fla. & VANCOUVER, B.C.--(BUSINESS WIRE)--May 29, 2001

Citrix Systems, Inc. (Nasdaq:CTXS) and Sierra Wireless (Nasdaq:SWIR)(TSE:SW.) announced today they have established a strategic relationship to deliver business applications running on Citrix(R) MetaFrame (TM) servers over wireless networks to users on virtually any client device.

Citrix MetaFrame software supports the Sierra Wireless AirCard(R) 300, 400 and 510 wireless network cards and will support future Sierra Wireless AirCard products, offering users of wireless devices the benefit of secure, high-performance access to full-function server-based applications over wide-area networks.

Key terms of the agreement include product compatibility testing and joint marketing and sales initiatives, beginning with Citrix representation in the Sierra Wireless booth at PC Expo in June. Citrix has joined the Sierra Wireless WirelessReady (TM) Alliance (WRA) and Sierra Wireless has become a Premier-level member of the Citrix Business Alliance (TM) (CBA).

"With the growing adoption of mobile communication devices, businesses are asking for access to applications along with Internet connectivity and tools to optimize worker productivity," said David Jones, senior vice president of corporate development for Citrix. "Through its wireless modem technology and partnerships with leading wireless carriers in North America, Sierra Wireless is helping Citrix ensure that customers can connect with the business applications they need from a wide range of devices and network types using their current IT infrastructure."

Sierra Wireless has developed products for existing and emerging wireless data networks in North America that support Cellular Digital Packet Data (CDPD), Code Division Multiple Access (CDMA) and Ricochet wireless networks. All Sierra Wireless products are designed for performance and reliability, offering complete wireless solutions for businesses and consumers.

"Citrix is leading the effort to provide secure, efficient application access from wireless devices," said Andrew Harries, senior vice president, corporate development for Sierra Wireless. "Citrix technology, which enables applications to execute 100 percent on the server, uses minimal bandwidth, making it highly efficient over wireless WANs. By working with Sierra Wireless and other members of the WirelessReady Alliance, Citrix can extend server-based application access into the wireless space and provide even greater device and network flexibility to enterprise customers."

Citrix application serving technology extends the reach of Windows(R) and UNIX(R) based applications to wireless devices, offering organizations a cost-effective, flexible method for making full-function business solutions available to mobile users. Citrix ICA Clients are provided for leading wireless operating systems, including the Symbian Platform and the Microsoft Windows CE and Pocket PC platforms, enabling applications running on Citrix servers to be accessed by users on a wide array of handheld devices. Citrix technology is a key enabler of successful application delivery in the wireless space through its ability to provide a full- featured, rich application experience over a low-bandwidth wireless connection.

About the Citrix Business Alliance

The Citrix Business Alliance (CBA) is a growing coalition of industry-leading companies from across the technology spectrum that are working with Citrix solutions to broaden the scope and effectiveness of server-based enterprise computing solutions. The program provides members with access to Citrix products for compatibility testing with Citrix MetaFrame application server software, new business opportunities with other Citrix solution providers, access to joint marketing programs and enhanced technical support.

About WirelessReady(TM) Alliance

Sierra Wireless founded the WirelessReady Alliance in December 1998 with a mission to accelerate the rate of mobile computing adoption through the delivery of complete and compelling wireless data solutions. Each member of the WirelessReady Alliance brings unique knowledge of their markets as well as a credible and established reputation for delivery of best-in-class products. WirelessReady Alliance members also receive wireless-related marketing, sales, technology and product support from the Alliance's knowledge base. WirelessReady Alliance administration is the responsibility of Sierra Wireless. The WRA has its own Website that includes comprehensive wireless data information and complete solutions offered by some of its members including AT&T Wireless, Bell Mobility, TELUS Mobility, Verizon Wireless, Sprint PCS and Metricom. The site also features, among other things, 10 steps to making your Website wireless ready, and links to wireless news. Visit the site at www.wirelessready.org.

For more information on the WirelessReady Alliance, please contact the program manager, Leslie Cannon, at [phone] or via email at [e-mail].

About Sierra Wireless

Sierra Wireless, Inc. is a leading provider of wireless data communications products. Sierra Wireless delivers wireless PC Cards for portable computers, wireless adapters for PDA's, OEM modules for embedded applications and rugged vehicle-mounted wireless systems. Sierra Wireless is the founding member of the WirelessReady(tm) Alliance, an alliance of industry-leading hardware, software and service companies committed to the delivery of complete and compelling wireless data solutions. For more information on Sierra Wireless, visit its Web site at www.sierrawireless.com

Forward-Looking Statements

This press release contains forward-looking statements that involve risks and uncertainties. These forward-looking statements relate to, among other things, plans and timing for the introduction or enhancement of our services and products, statements about future market conditions, supply and demand conditions, and other expectations, intentions and plans contained in this press release that are not historical fact. Our expectations regarding future revenues depend upon our ability to manufacture and supply products which we do not produce today and that meet defined specifications. When used in this press release, the words "plan," "expect," "believe," and similar expressions generally identify forward-looking statements. These statements reflect our current expectations. They are subject to a number of risks and uncertainties, including, but not limited to, changes in technology and changes in the wireless data communications market. In light of the many risks and uncertainties surrounding the wireless data communications market, you should understand that we cannot assure you that the forward-looking statements contained in this press release will be realized.

About Citrix

Citrix Systems, Inc. is a global leader in application serving and portal software and services that provide personalized access to any application or information source - whether Windows, UNIX or Web-based - through any device, over any connection. Companies worldwide use Citrix technologies to integrate applications, content and business processes into a pervasive digital environment - a virtual workplace - offering seamless connectivity and a consistent user experience across the Internet, intranets, extranets, WANs, LANs and wireless networks. Citrix solutions drive cost efficiency, productivity and enhanced e-business opportunities by enabling companies to leverage existing IT resources and extend personalized information access to employees, partners, customers and suppliers.

Citrix products offer rapid, cost-effective deployment and include MetaFrame application serving software, NFuse(TM) application portal software, XPS(TM) portal software, application management products, and Citrix Independent Computing Architecture (ICA(R)), a core application serving technology. The company markets its application serving products through a well-established reseller channel and sells its portal software products directly to customers to provide the level of customization they need. Citrix is traded on the Nasdaq Stock Market(SM) under the symbol CTXS, and is part of the Standard and Poor's 500 Index. Citrix is headquartered in Fort Lauderdale, Florida. For more information, please visit the Citrix Web site at http://www.citrix.com.

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. Investors are cautioned that statements in this press release which are not strictly historical statements, including, without limitation, statements regarding current or future financial performance, management's plans and objectives for future operations, product plans and performance, management's assessment of market factors, as well as statements regarding the strategy and plans of the company and its strategic partners, constitute forward-looking statements. Such forward-looking statements are subject to a number of risks and uncertainties that could cause actual results to differ materially from those anticipated by the forward-looking statements, including, without limitation, risks associated with the following: the success of the company's MetaFrame product line and the acceptance of the company's ICA protocol; the company's ability to develop and commercialize new products and services; the company's success in expanding into new geographic markets; the company's ability to expand its core business in large enterprise accounts; the company's ability to succeed in the transition to a paper/electronic licensing model; the size, timing and recognition of revenue from significant orders; increased competition, including potential competition from Microsoft and other companies; the results of the company's iBusiness and other new licensing programs; the rate of growth of the ASP market, and the company's ability to continue to develop and market products to meet the requirements of this market; the proportion of revenues derived from distributors, OEMs and other channels; changes in the company's pricing policies or those of its competitors, including Microsoft; the costs of developing, acquiring, or integrating new technologies or enhancements to existing products; the company's ability to successfully integrate and manage merged or acquired companies; the company's ability to develop new products, extend existing products, and maintain or develop such company's customer and employee relationships as a result of such merger or acquisition; the company's reliance upon its strategic relationships with Microsoft and other strategic partners; management of growth; the possibility of undetected software errors; dependence on proprietary technology; risks that the company's portal strategy will not succeed in the manner anticipated; as well as risks of downturns in economic conditions generally, and in the software industry specifically, and 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(R), ICA(R), MetaFrame (TM), NFuse (TM) and Citrix Business Alliance (TM) are registered trademarks or trademarks of Citrix Systems, Inc. in the US and other countries. "WirelessReady" and "AirCard" are trademarks of Sierra Wireless, Inc. All other trademarks or service marks in this news release are the trademarks or service marks of their respective owners.