I just finished a Windows build of r3225 in a Virtualbox VM. This is fine for building but some of the 3D graphics sure do not work. It does work for running MegaGlest in general, though, and you can even start a game. I could also save a game fine. However, when trying to load this game later, MegaGlest hangs indefinitely (freezes) during game inintialization at the "Unloading map" stage. While a virtual server is a bad testbed for testing 3D applications, Ishmaru has run into the exact same situation when he was testing an earlier revision on his native Windows system, too. So I guess we still need more native Windows tests since there is a good chance that restoring savegames is currently broken there.
Update: Softcoder fixed this in r3226 (as I just confirmed). Thanks!