Windows DreamScene
（重定向自DreamScene）
Windows DreamScene is a utility that allows videos and .gif and other optimized animations to be used as desktop wallpapers. It is one of the Windows Ultimate Extras. Prior to its official announcement, DreamScene was rumored to be in creation under the names Motion Desktop and Borealis. After several months of testing, the final version was released on September 25, 2007.