It took me a while to figure out how to get a list of all the available fields for a particular type of list in SharePoint (for performing custom queries in SPQuery). I was looking for a published list of these fields, which as far as I know does not exist. Instead, you just use the GetList method of the Lists SOAP service. Here’s an example SOAP request: <?xml version="1.0" encoding="utf-8"?> <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://sche... SOAP-ENV:encodingStyle="htt...