I was having problems capturing SOAP requests to a local WCF service using Fiddler. To see these I tried a numebr of things, these final settings made the difference: Remove any filters Add SOAP custom filters using fiddler script, at the start of the class: and also into OnBeginResponse method: Enable SOAP filters
SOAP Explanation
A clear and concise description of the SOAP messaging standard and each of the component parts: http://www.soapuser.com/basics3.html A full specification of the SOAP messaging standard can be found here: http://www.w3.org/TR/soap/
XMethods
A cool web site listing free-to-access web serivces available on the Internet: xMethods.com