DreamScene is available thru Windows Vista Updates..

Atlast the long waiting DreamScene feature is available now!! Microsoft released it through Windows Updates. This is specific to Windows Vista Ultimate users.

This piece of software allows the Vista Ultimate users to setup a Video as the Desktop Background. These files play at 30fps. Even HD content is supported by DreamScene.

Also an important note to the Ultimate users:

Whenever a new Windows Ultimate Extra is ready for distribution by Microsoft, you will see the Ultimate Extra control panel inform you that there are new extras to download. Simply download and install the Extras and begin enjoying these exclusive software and services that give your Windows Vista experience an extra lift!