David Iseminger is an independent consultant at Microsoft, and has worked on Windows NT and Windows 2000 (since Windows NT 3.5) as a networking and router performance analyst, telecommunications specialist, and performance tool developer. He currently works with the Developer Documentation Group as a programming writer, creating and maintaining many of MSDN's established and emerging networking technologies, including Quality of Service. He is the author of many other computer books and reference collections, including Active Directory- Services for Microsoft Windows 2000 Technical Reference from Microsoft. A graduate of the University of Washington, David lives in the Puget Sound area of Washington State. For more information about David's work, including other books in this series, check out www.iseminger.com.