作者简介：Walter Glenn, Microsoft Certified System Engineer (MCSE), Microsoft Certified Desktop Support Technician (MCDST), and Microsoft Certified Trainer (MCT), has been a part of the com-puter industry for more than 17 years and currently works in Huntsville, Alabama, as a consultant, trainer, and writer. Walter is a regular columnist in Microsoft's TechNet Zone and is the author or coauthor of nearly 20 computer titles, including Microsoft Exchange Server 2003 Administrator's Companion (Microsoft Press, 2003), Mike Meyers' MCSA Managing a Microsoft Windows Server 2003 Network Environment Certifica- tion Passport (Exam 70-291) (Osborne, 2003), and MCSE Self-Paced Training Kit (Exam 70-297): Designing a Microsoft Windows Server 2003 Active Directory and Net- work Infrastructure (Microsoft Press, 2003). He has also written a number of Web- based courses that are geared toward Microsoft certification training.
