flyakite...i tried it out on my XP machine after seeing the link here. it's got a very nice feel to it, etc. but i was getting errors with 'some' of my dll files from different VSTi's etc, and some default windows stuff like calculator, etc didn't work for the same reason. (xp sp3)
apart from that it does work very nice in general, although it does add a memory footprint to the memory load, it is quite low. I took it off again for the dll problem (no post-uninstall problems at all)