Thanks for the tip, but I don't own RealSkinShader, I only had chance to play with it few times :). But no doubt it'll be usefull info for some.

BTW. about not being able to write to C: drive, is it perhaps UAC issue? UAC is good idea, but bothers too much, maybe they should have added option for it to work like software firewalls do. So we can set which applications can do what without annoying popup every time.