Adam Freeman is a professional programmer and the author of two early Java books, Programming the Internet with Java and Active Java, both published by Addison Wesley, as well as Java course materials. His recent experience architecting a green-field e-commerce platform has given him an in-depth understanding of the current security challenges facing those developing large scale distributed systems. Adam has previously worked for Netscape, Sun Microsystems and the NASDAQ stock exchange.Allen Jones has been developing Windows solutions since 1990 and working with Windows NT and Win32 since 1993. He was one of the first MCSEs to qualify anywhere in the world. For the last 3 years, Allen has been developing e-commerce and security systems for large corporations and financial institutions. He is a former employee of Microsoft in both Australia and the UK and co-author, with Adam Freeman, of C SHARP for Java Developers and .NET XML Web Services Step by Step , both from Microsoft Press.