Proxy classes generated using Wsdl.exe will set a default WebClientProtocol.Url property for the client to use. The default WebClientProtocol.Url is determined by the location attribute found in the service description from which the proxy class was generated.

Derived classes supporting specific protocols, such as System.Web.Services.Protocols.HttpGetClientProtocol and System.Web.Services.Protocols.HttpPostClientProtocol might add extra information to WebClientProtocol.Url to make the XML Web service request.

The WebClientProtocol.Url property can be changed to refer to any XML Web service that implements the same service description that the proxy class was generated from.