I was trying to generate WCF proxy (Client) using svcutil.exe Visual Studio 2008 version. I also need to use the /r parameter of the svcutil.exe, so the generated proxy code will not generate definition for the objetcs from my reference assemblies. The command I use is something like: svcutil.exe /async http://localhost:8080/MyService /r:"C:\My.dll" /tcv:Version35 /out:MyClient.cs In case the assembly My.dll contain .NET object that mark as [MessageContract] the generated proxy still contain...