Web Services development using the .NET SDK alone

http://www.codeguru.com/Csharp/Csharp/cs_webservices/tutorials/article.php/c5477

c:> WSDL http://localhost/MyWebServices/FirstService.asmx?WSDL
c:> csc /t:library FirstService.cs

Create a proxy for the Web Service using the wsdl utility supplied with the .NET SDK. It will create FirstSevice.cs in the current directory. We need to compile it to create FirstService.dll (proxy) for the Web Service.