Please direct your media and public relations inquiries to: mediarelations@cdw.com 800-800-4CDW CDW Expands Product Line With Microsoft Office XP VERNON HILLS, Ill. May 31, 2001 - CDW Computer Centers, Inc. (Nasdaq: CDWC), a direct solutions provider of technology products and services, is continuing its commitment to bringing the latest technology to its customers by offering the full family of Microsoft Office XP products. "Businesses turn to CDW for the technology to automate their internal systems," said Doug Eckrote, CDW's senior vice president of purchasing. "CDW is a leading source for Microsoft products and is a Microsoft Enterprise Software Advisor. Office XP adds the next generation of Microsoft technology to our broad, multi-brand product selection. We have worked closely with Microsoft to make sure our account managers are knowledgeable about the improved reliability, security and the simplicity associated with upgrading to Office XP." "Our goal with Office XP is to provide customers with tools to help them work smarter, which includes being able to more easily access information and share it with others, having greater control over Office, and being better able to protect customers from losing data," said Lisa Gurry, product manager for Office at Microsoft Corp. "We are thrilled to see CDW capitalize on Office XP technology to provide its customers with this important set of productivity tools." Other new benefits of Office XP include smart tags, which appear as buttons across all Office applications, support for speech and handwriting recognition, and other productivity enhancements. The "XP" replacing the traditional year of release in the name of the product is said to stand for "experience." Customers can obtain Office XP by acquiring boxed product or software licensing. Office XP comes in several versions, including Standard, Professional and Developer varieties. Office XP will be backed by CDW's full range of services and support. To order Office XP, customers may call 1-800-797-4CDW or visit www.cdw.com. About CDW Computer Centers, Inc. CDW® (Nasdaq: CDWC - news), ranked No. 435 on the FORTUNE 500, offers complete, customized technology solutions for businesses, government agencies and educational institutions nationwide. CDW is a leading source of technology products and services from companies such as Cisco, Compaq, Hewlett-Packard, IBM, Intel, Microsoft, Sony, Toshiba and other top name brands. CDW was founded in 1984 as a home-based business and today employs more than 2,700 coworkers whose efforts generated net sales of $3.8 billion in 2000. CDW's direct model offers one-on-one relationships with highly trained account managers; purchasing via telephone, the award-winning www.cdw.com Web site, and customized CDW@work(TM) extranets; custom configured solutions and same day shipping; flexible financing solutions; and, telephone and online technical support with its factory-trained and A+ certified technicians. Additional information can be found by visiting http://www.cdw.com. For more information About CDW: Visit CDW on the Internet at http://www.cdw.com Contact CDW Investor Relations via the Internet at investorrelations@cdw.com Or by telephone at 847.419.8234