Cygwinx
From wikinotes
xorg server for cygwin.
Documentation
man xwin
Locations
~/.xstartwinrc
customize startup
Usage
startxwin startx <program> -- <..xwin flags...> startx /usr/bin/openbox -- -rootless -keyhoook # start openbox in same windowspace as windowsxwin params
-rootless (no window decorations on xserver) -keyhook (cygwin sees keypresses before windows) (allows windows key to be used)