436_XSS_FM.qxd 4/20/07 1:18 PM Page ii w w w. s y n g re s s . c o m Syngress is committed to publishing high-quality books for IT Professionals and deliv- ering those books in media and formats that fit the demands of our customers. We are also committed to extending the utility of the book you purchase via additional mate- rials available from our Web site. SOLUTIONS WEB SITE To register your book, visit www.syngress.com/solutions. Once registered, you can access our