John Paul Mueller, consultant, application developer, writer, and technical editor, has written more than 300 articles and 75 books, including coauthoring Mastering Windows Vista Business: Ultimate, Business, and Enterprise. His topics range from programming and operating systems to home security and accessibility. He has contributed articles to such magazines as DevSource, asp.netPro, InformIT, SQL Server Professional, and Visual C++ Developer, among others. You can reach him at his Web site www.mwt.net/~jmueller/.