Tyson Kopczynski is a consultant at Convergent Computing (CCO) specializing in Windows scripting. He holds multiple certifications. In addition to writing the previous version of this book, he has contributed to several other Unleashed titles. Pete Handley has more than 15 years of experience in IT, including extensive knowledge of Active Directory, Microsoft Exchange, Novell GroupWise messaging, and Novell Directory Services. He has been a contributing author for the books Microsoft Exchange 2003 Unleashed and Windows PowerShell Unleashed. Pete specializes in Visual Basic and PowerShell scripting. They both live in the San Francisco Bay area.