DeskScapes provides animated wallpaper for all users of Windows Vista.
Animated wallpaper isn't just for Windows Vista Ultimate users anymore. With the release of beta 1 of DeskScapes 2.0 on Object Desktop, all users of Vista can use the hundreds of available .DREAM files here on WinCustomize as their animated backgrounds.
Object Desktop users also get some exclusive animated wallpaper content including four dynamic dreams (Water Dream, Earth Dream, Water Color, and Box Sample).
If you don't have Object Desktop, you can get it here.