I have been trying to figure out how to access Microsoft Sharepoint from an external application today, and have so far found the documentation very thin on the ground indeed. When you talk to Sharepoint you have to talk to it’s various web services; but the means of doing so are not well documented at all.
Tonight is probably going to see me scouting out across the newsgroups to see what I can find, and if anybody else has done anything with Sharepoint….