J.C. Mackin, MCITP, MCTS, MCSE, MSDST, is a writer, editor, consultant, and Microsoft Certified Trainer who's worked with Microsoft networks for more than a decade. He has authored several SELF-PACED TRAINING KITS, including Exams 70-291, 70-622, and 70-642. Anil Desai, MCITP, MCSE, MCSD, Microsoft MVP, specializes in evaluating, implementing, and managing IT solutions based on Microsoft technologies. He has written numerous books on Microsoft certifications, the Windows Server platform, Active Directory, virtualization, and other technical topics.