The WSDL tool is a handy tool to generate a proxy class to consume a web service. There is plenty of information out there about it, so I will not go into detail. I will provide some links though. One bit of advice is to add a new Environment Variable to your machine. Here is an example, I named mine Path.
Variable name: Path
Variable value: %PATH%;C:\Program Files\Microsoft SDKs\Windows\v7.0A\bin
You may need to verify that path on your actual machine, it should be the location of wsdl.exe.