Don’t have Vista? Wanna know what the whole gimmick of Aero is about? Hey, then you’re in luck.
Shock Aero 3D provides all the fancy schmancy switching in an OpenGL environment without having to install Vista. Yessiree, you can now switch to your heart’s content just like with Vista, but in Windows XP/2000/2003. Now why you would want to do that since it’s kind of a waste of resources is beyond me since you can already do application switching but no matter. It’s pretty! And people like pretty!
Freeware for Windows.