In order to enable these DreamScenes, you must have Windows Vista Ultimate and have installed the Windows DreamScene Technical Preview which is under Ultimate Extras in Windows Update. To install the DreamScenes, just right-click on the above download links and save them to your Videos folder. Then right-click on your desktop, go to Personalize and then Desktop Background and under Location choose your Videos folder and select the new Silverlight DreamScene.
Windows XP and Vista Home Premium/Basic users can use VLC Media Player to use this video as your moving wallpaper.
Download: Microsoft Silverlight “Dusk” DreamScene (Standard)
Download: Microsoft Silverlight “Dusk” DreamScene (Widescreen)