The first of two whitepapers entitled “Using Custom Behaviors with the BizTalk WCF Adapters, Part 1"” is now available for download.  You can get the Word version of the whitepaper at  Alternatively, it's location in the MSDN library can be located at

Here is a summary of its content. Enjoy!

Customization of message processing in Microsoft® BizTalk® Server 2006 R2 can be extended through the use of Windows Communication Foundation (WCF) custom behaviors. This article is the first of two parts discussing how the use of WCF custom behaviors within BizTalk Server gives increased control over the message transmission process.