Now you can simply drop a WSDL file into the App_Code folder and the web proxy class is dynamically generated. Cool!
In Visual Studio .NET 2003, you must manually add a web reference to a web service using Add Web Reference or the WSDL.exe tool so that the appropriate web proxy class is generated. In Visual Studio 2005, this step is no longer required. Instead, you simply add a WSDL document that describes the service into the App_Code folder and the web proxy class needed to access the service is generated automatically. This allows you to handle situations where you are only provided a WSDL file by a web service provider and not a browsable URL endpoint containing the WSDL document.