You can download Windows DreamScene x86 beta setup installer via BitTorrent P2P network (BT clients such as BitComet required). Download the torrent
here (no longer available. Alternatively, direct download links for DreamScenex86.zip here (no longer available) and here (no longer available). The zip archive contains DSx86.msu (Microsoft Update Standalone Package for Windows Vista) used to install Windows DreamScene. Inside also contains free DreamScene videos of aurora8x6.wmv and Bliss.wmv.
Update: Official preview release of DreamScene.
Windows DreamScene supports only .mpeg and .wmv video file formats. Beside, the video support requires a graphics card that supports Windows Aero. However, for computers that do not support the Windows Aero desktop experience, this Extra adds new positioning options for backgrounds, including stationary pictures.
How to Use Windows DreamScene to Set Video as Motion Desktop Background
Once you install Windows DreamScene, just right-click on Windows Vista desktop and then select “Personalize”. In the Personalization window, select “Desktop Background”. And at the Picture Location drop-down list, select “Videos” or “Windows DreamScene Content”. You will be shown a list of video available. Simply pick a video and here you go to enjoy the motion desktop video background experience.
This release has been tested as working on Windows Vista Ultimate RTM activated. It is unlikely to work on unactivated Windows Vista systems or any other flavors of Vista or non-Vista system.