Microsoft ESB Guidance June 2007 Community Release

The Microsoft ESB (Enterprise Service Bus) Guidance provides architectural guidance, patterns, practices, and a set of BizTalk Server and .NET components to simplify the development of an Enterprise Service Bus (ESB) on the Microsoft platform and to allow Microsoft customers to extend their own messaging and integration solutions. 
You can download the latest Community Release : https://www.codeplex.com/esb