I didn't see a mention of the argument to invoke the new rootless mode anywhere in this thread--no doubt it's in the updated man pages, but I just grabbed the Test66 binary. Logically enough, it's '-rootless':
-rootless EXPERIMENTAL: Run the server in pseudo-rootless mode. You don't appear to need the '-nodecoration' option when you use '-rootless'. Note that the output of 'XWin -help' goes to /tmp/XWin.log[1], a fact which I had forgotten. This is really cool--many thanks to Matsuzaki, Thomas, and Harold! It's a bit of a hack, but it looks very useful, and at the least it should get most of the 'Why doesn't cygwin-xfree work like my favorite commerial X server?' people off of Harold's back. I'll probably go back to full-screen 'rooted' mode, though--I _like_ hiding all of the Windows junk when I'm working in X. - Bradey [1] http://www.cygwin.com/ml/cygwin-xfree/2002-04/msg00504.html