The authors would like to thank their technical reviewers for this edition, Alain Lissoir, Roger Abell, Gil Kirkpatrick, and Jeff Westhead as well as the technical reviewers for previous editions, Levon Esibov, Jon Forrest, and David Blank-Edelman, for their invaluable contributions to this book. Paul Robichaux provided assistance from his wealth of Exchange knowledge for Chapter 5, and John Peterson offered helpful suggestions based on his production Windows 2000 environment.

Robbie would like to thank Cricket and Matt for giving him the opportunity to work on this book. He'd also like to thank his wife, Janet, for being supportive even though she thinks he needs a break.

Matt would like to thank his wife, Sonja, for her support and unflagging patience, and Cricket for asking him to help with the book in the first place. He'd also like to thank his current and former managers at VeriSign, Manoj Srivastava and Aristotle Balogh, for their support.

Cricket owes a debt of gratitude to his wife, Paige, for running the show while he wrote this book. (And when he's not writing, for that matter.) Additional thanks are due Walt, Dakota, and Annie, for their many sacrifices while Papa was working, always working. Finally, love and thanks to his grandparents for their support, guidance, and company over many years.

We would also like to thank the folks at O'Reilly & Associates for their hard work and patience. Credit is especially due to our editors, Mike Loukides and Deb Cameron.