SOAP response for WCF is encoded - how to decode?



I’m capturing traffic from a WPF thick client that uses WCF serices.
I set the filter to: tcp port http
The SOAP request and response traffic seems to capture fine.
When I right click on a tcp packet and select ‘Follow tcp Stream’ the SOAP request in in .xml,
(problem) - the SOAP response from IIS7.5 is encoded (looks like machine code?) and I need it to be in .xml.

If anyone can provide any insight how to un-encode SOAP Response this would help me greatly.

PS: Using Fiddler2 produces the correct format for both Request and Response, so I don’t feel it’s the App Server.