WCF Extras

" A collection of useful WCF extensions including Soap Header support, WSDL documentation and more.

The WCF platform is very extensible and allows you to easily add features that are not part of the core product.
This project contains some extensions I needed in a WCF based project:

• SOAP Header support for WCF
• Adding WSDL Documentation from Source Code XML Comments
• Override SOAP Address Location URL
• Single WSDL file for better compatibility with older SOAP tools."

http://wcfextras.codeplex.com/