Windows Communication Foundation (WCF) ties together previously separate Microsoft technologies (COM, COM+, MSMQ, .NET remoting, etc.) which enable disparate software systems and programs to interact with each other. This is one of the toughest tasks for enterprise developers, who have been eagerly awaiting the release of WCF since it was announced in the fall of 2003 (under the code name Indigo.) The authors work with the WCF development team to help Microsoft partner companies implement and use WCF. They are uniquely positioned to write this book. From their contact with the WCF team they have inside knowledge of the way that WCF was designed and functions. From their work with early adopters of the technology they know where the problem spots are, and what sort of information is not covered adequately by the online documentation. WCF is one of the three pillars of .NET 3.0, along with Windows Presentation Foundation and Windows Workflow Foundation, and with those two will revolutionize the way programmers develop software. Every .NET developer will need to learn about WCF, and there is no better or complete guide to WCF than Windows Communication Foundation Unleashed.