Sorry but there was a problem with the intellesense for the Vault 2013 SDK. When you are calling a web service function in Visual Studio, you should be seeing documentation appear as you code. You may have noticed those XML files in the SDK bin directory. The only purpose of those files is to provide documetation as you code. However, there is a problem with the one for Autodesk.Connectivity.WebServices.
To fix this, I am posting the corrected XML file. Just overwrite the existing Autodesk.Connectivity.WebServices.XML and you will see the function descriptions as you code. All the other XML files should be correct.
Unfortunately, only the functions themselves are documented. The parameter descriptions didn’t get exported for some reason. Again, this is only a problem with Autodesk.Connectivity.WebServices.