Wind River Extends Development Suite Support to Express Logic's Popular ThreadX Real-Time Operating System

• Wind River and Express Logic team to provide customers with choice and flexibility as well as ease-of-use and increased responsiveness to assist in the development of highly intelligent devices on time and under budget.
• Wind River Workbench 2.3 provides an open, end-to-end device software development suite for multiple operating systems.
• Relying on Wind River's powerful integrated development environment throughout the entire device development process, Express Logic customers now benefit from having exceptional visibility and broad support for the ThreadX operating system.
  

ALAMEDA, Calif. and ORLANDO, Fla. — May 23, 2005 — Wind River Systems, Inc. (NASDAQ:WIND), the global leader in device software optimization (DSO), and Express Logic Inc., a worldwide leader in royalty-free real-time operating systems (RTOS), today announced a partnership agreement through which the two companies will collaborate to extend Wind River Workbench 2.3 to support Express Logic’s ThreadX® real-time operating system (RTOS). Wind River Workbench is an Eclipse-based development suite that supports the entire device software development lifecycle, from hardware bring-up to manufacturing. Express Logic’s ThreadX RTOS is a small-footprint, royalty-free RTOS widely deployed in high-volume devices for consumer electronics, wireless networking, medical equipment, and industrial automation.

By extending Wind River Workbench support to Express Logic's ThreadX operating system, Wind River is delivering on its commitment to provide truly interoperable tools for multiple operating systems. With this announcement, ThreadX becomes the latest operating system to be supported by Wind River Workbench, in addition to Wind River’s VxWorks RTOS, Wind River Linux, Red Hat Linux, MontaVista Linux and the standard Kernel.org Linux.

"When our customers invest in ThreadX, they expect an easy-to-use, highly advanced, dynamic solution, and we know Wind River's customers expect the same from its device software solutions," said John Carbone, vice president of marketing, Express Logic. "By incorporating the ThreadX RTOS with Wind River Workbench, we can now offer our joint customers a tightly integrated, complete solution that addresses the full lifecycle of their device software development needs."

"Wind River is committed to helping its customers develop and run device software faster, better, at a lower cost and more reliably," said Rob McCammon, director of product management for Wind River development suite, Wind River. "We recognize the value of the ThreadX operating system for the device software space across all vertical markets, and embrace the opportunity to extend Wind River Workbench to support it as part of our ongoing promise to provide standardized and optimized device development solutions to our customers."

To learn more about Wind River Workbench, please visit: www.windriver.com/products/development_tools/ide/wind_river_workbench

About Wind River
Wind River is the global leader in device software optimization (DSO). Wind River enables companies to develop and run software faster, better, at a lower cost and more reliably. Wind River Platforms tightly integrate a rich set of market-leading operating systems, development tools and middleware with services to provide a complete foundation that meets the specific requirements of a vertical market. Wind River's products and professional services are used in multiple markets including aerospace and defense, automotive, digital consumer, industrial, and network infrastructure. Companies from around the world turn to Wind River to create the most reliable products and to accelerate their time to market.

Founded in 1981, Wind River is headquartered in Alameda, California, with operations worldwide. To learn more, visit Wind River at www.windriver.com or call Wind River at 1-800-872-4977.

Forward-Looking Safe Harbor Statement
Certain statements in this press release including, but not limited to, the anticipated release and benefits of new products, services and reference designs by Wind River and resulting from collaboration with partners, are forward-looking statements that are subject to risks and uncertainties that could cause results to be materially different than expectations. Such risks and uncertainties include, but are not limited to, delays in the development or integration of technologies, rapid technological or business changes that adversely affect customer demand or partner strategies, and other risks detailed from time to time in the Wind River reports filed with the Securities and Exchange Commission including its Form 10-K for the year ended January 31, 2005. These forward-looking statements speak only as of the date hereof. Wind River disclaims any obligation to update these forward-looking statements.

About Express Logic and ThreadX
Headquartered in San Diego, CA, Express Logic offers the most advanced run-time solution for deeply embedded applications, including the popular ThreadX RTOS, the high-performance NetX™ TCP/IP stack, the FileX™ embedded MS-DOS compatible file system and the USBX™ Host/Device USB protocol stack. All products from Express Logic include full source-code and have no run-time royalties. For more information about Express Logic solutions, please visit the Web site at www.expresslogic.com, call 1-888-THREADX, or email inquiries to sales@expresslogic.com.

The Wind River logo is a trademark of Wind River Systems, Inc., and Wind River and VxWorks are registered trademarks of Wind River Systems, Inc. Other marks used herein are the property of the respective owners.

ThreadX is a registered trademark of Express Logic, Inc. NetX, FileX, CANX, USBX, preemption-threshold, picokernel, and UDP fast path technology, are trademarks of Express Logic, Inc. All other brands or product names are the property of their respective holders.