Acknowledgments When you work on a book project, several people are involved in the writing process one way or another, and I am going to try my best to thank everyone who helped me through the research, envisioning, and writing of this book. If I did miss anyone, it is only because there were so many people who played a part in making this book a reality! The first group of people that I want to thank is the PKI product and testing team, current members and past members, from Microsoft: David Cross, Vic Heller, Phil Hallin, Avi Ben- Menahem, Oded Ye Shekel, Jen Field, Kelvin Yiu, and Yogesh Mehta. All of you helped me get my head around several of the specifics of the Microsoft PKI and the new features of Windows Server 2008. I especially want to thank Avi, Oded, Jen, and Carsten Kinder, who wrote many of the draft white papers that I used to research the topics for the second edition. Your white papers helped me learn the technologies and get my head around the the new nuances. The second group of people that I have to thank are the clients that IdentIT Inc. has had the pleasure of working with over the last five years. Paul Adare and I have learned more than you can imagine by interacting with you and your networks. A book is only as good as the project team that helps the author translate thoughts to words on a page. I want to specifically thank the following individuals: Martin DelRe, the product planner, for bringing the book proposal to Microsoft Press. Seth Scruggs, Chris Gregory, and Shawn Rabourn, for pushing me to proceed with a second edition. Denise Bankaitis, for keeping the project flowing (especially with my attempting to write parts of this book on every continent--again...). Paul Adare, for your outstanding technical review of the content. Although the reviews took me hours to incorporate, the book is much stronger because of your efforts and knowledge. The Trustworthy Computing Security Content Review Board (TwC SCRB), a Microsoft team that reviewed each and every chapter to provide the final check for technical accuracy and consistency with Microsoft product and technology messaging and strate- gies. The SCRB team members for this book were David Kennedy, Shawn Rabourn, Jonathan Stephens, Michiko Short, Elton Tucker, Ken Carr, Sanjay Pandit, Jose Luis Auricchio, Matthijs ten Seldam, Akshat Kesarwani, Edward Gomes, Lupe Brieno, Anders Brabæk, Mark Eden, and Monica Ene-Pietrosanu. A special thank-you to Ken, Shawn, and Jonathon for finding the time to review each and every chapter of this book. xxiii