NEWS

• Ken Klein, chief operating officer and board member of Mercury Interactive, joins Wind River's Board of Directors.
• Klein brings extensive operational and sales expertise to Wind River.

Alameda, Calif.--July 24, 2003--Wind River Systems, Inc. (Nasdaq:WIND), the market leader in embedded software and services, today announced that Ken Klein, chief operating officer and a board member of Mercury Interactive, the global leader in business technology optimization (BTO), has been named to Wind River's Board of Directors. Klein brings more than 20 years of experience to the Wind River Board. Klein's operational expertise will help Wind River continue to strengthen its position in the embedded systems market.

"Ken Klein will be a strong asset to Wind River, as he brings significant expertise in aligning technology with business goals," said Naren Gupta, interim CEO and vice chairman of Wind River Systems. "Klein's guidance will be invaluable in the continued success and growth of Wind River."

"Wind River has demonstrated leadership and strategic vision in the embedded software industry for more than twenty years," said Klein. "I look forward to being a part of Wind River's continued evolution, as the company transforms itself and the industry."

Klein has been with Mercury Interactive for 11 years and has held several executive positions in both operations and sales. Prior to joining Mercury Interactive, Klein served in various roles at Interactive Development Environments, Daisy Systems and Hughes Aircraft Company. Klein also serves on the board of Mercury Interactive, and the boards of Tumbleweed Communications and the University of Southern California's School of Engineering.

About Wind River Systems, Inc.
Wind River is the worldwide leader in embedded software and services. It provides market-specific embedded platforms that integrate real-time operating systems, development tools and technologies. Wind River's products and professional services are used in multiple markets including aerospace and defense, automotive, digital consumer, industrial, and network infrastructure. Wind River provides high-integrity technology and expertise that enables its customers to create superior products more efficiently. 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.

Contact Information
Jessica Miller
Global Corporate Communications