If you are doing any work with .NET Web Services, you might want to check out GotDotNet’s Web Service Studio. It’s a great tool for invoking web methods interactively. Basically, you give it a WSDL endpoint and the tool grabs the file and generates the .NET proxy. You can then choose which method you want, and the input parameters. Once you have it all setup, you can then invoke the SOAP request to the server, and view the responses. Very useful.

Download it from GotDotNet