First, my apologies: I know that this has been discussed elsewhere, and I know most of the pieces, but I can't seem to get the entire assembly working. I'm thus appealing for help. Here's my goal: I'm trying to author XHTML+XForms documents. I would like to validate them and preferably have autocompletion. At this stage, I'm not interested in custom XSD schemas in my XForms instances. I followed the help here: http://www.oxygenxml.com/pipermail/oxygen-user/2005-July/000518.html http://groups.yahoo.com/group/rng-users/message/432 ...and I have XHTML 2 validation/completion working. I *thought* that XHTML2 would give me XForms and XML Events. Alas, here's the xhtml2.rng snippet: <x:h2>XForms module</x:h2> <x:p>To-Do: work out integration of XForms</x:p> <!--include href="xforms-11.rng"/--> So no dice. I then went on a day-long Google hunt, learning more about namespace routing languages etc. than I could possibly have wanted to know. I tried numerous iterations of numerous schemas for numerous specs. Next, I reviewed the oXygen mailing list archives and forum and found this: http://www.oxygenxml.com/forum/ftopic1769.html However, the example there didn't work for me. Meaning, I could put <xf:fake/> in my docs and it would still validate. I'd really be interested to hear that someone got XForms plus any flavor of XHTML working in oXygen. By working, I mean correct validation and autocompletion. I don't particularly care if it is XHTML 1 or 2, RNG or XSD or NRL, or what version of the spec is used. If anybody has a tarball containing an example document and the pile of schema docs it needed, I would be thrilled. All in all, either this stuff is hard or I'm pretty dumb. --Paul