We both want to thank everyone at Microsoft Press and all the people who reviewed the manuscr ipt for their kind support throughout this project. Eric Stroo, thanks for your patience as we completed the chapters (not always as fast as you wanted them). Sally Stickney and Rebecca McKay, thanks for your excellent job editing the manuscr ipt and making it readable. Sally Stickney and John Pierce, thanks for managing the project. Jim Fuchs at Microsoft Press, Jason Whittington at DevelopMentor, and Rick Watson at RogueWave Software, thanks for doing technical reviews of our manuscr ipt.