SOAP Deserialization

Question

Hi,
I have a server-client application and I would like to adapt the client so that it can work alone in "Demo mode": instead of making petition to the server, it would get the data from files (that contains data captured listening to the client-server communication).
I have a wsdl which i use to create csharp classes (using the wsdl commnand-line tool). The messages are XML-SOAP.
I can't manage to deserialize the captured messages easily. I'm sure there is a method in SoapHttpClientProtocol that allows to do it. Anyone has an idea?