Mark Minasi, MCSE, is one of the world's leading Windows authorities. He teaches classes in 15 countries and is a much sought-after speaker at conferences and industry gathering keynotes. His firm, MR&D, has taught tens of thousands of people to design and run Windows networks. Mark has written over 15 books for Sybex, including the market-leading Mastering Windows Server 2003 and The Complete PC Upgrade and Maintenance Guide.

Byron Hynes works in the Windows Server User Assistance group at Microsoft. He has prior experience running a regional Internet backbone, troubleshooting client-server and Web-enabled applications, and designing network infrastructures and security models. Byron co-authored Hands-On Microsoft Windows Server 2003 Active Directory.