how to use svcutil.exe to generate proxy class

open visual studio Command Prompt
start-->Microsoft Visual Studio 2010--> Visual Studio Tools-->Visual Studio Command Prompt

Write this line

svcutil.exe /language:cs /out:GeneratedProxy.cs /config:app.config http://localhost:8040/HostWebApplication/HelloWorldService.svc 



Replace
http://localhost:8040/HostWebApplication/HelloWorldService.svc 
 with your service address

hope this be useful