Visual Studio 2005 shipped with a very nice feature called debugger visualisers. In accordance with their names, debugger visualisers allow you to visually view useful information about objects during debug.

WCF Visualisers Tool contains number of visualisers:
1. Message Visualiser
2. Channel Dispatcher Visualiser
3. Service Description Visualiser
4. Service Host Visualiser
5. Service Endpoint for the client side.
6. Client Runtime Visualiser was added
7. Binding Visualiser was added
8. Security Context Visualiser was added
9. Security Visualiser was added