How to put a video as the wallpaper background

Dreamscene Video Wallpaper launches a compact, simple-but-functional interface that's very easy to comprehend and navigate. There are no tabs or other dialog boxes to access. All its features are accessible from the one small window, which is a plus for this otherwise uninspired design.

It's very easy to set up and use. Selecting existing video files from your hard drive and organizing categories to rotate the playlist style was simply a matter of a few clicks and keystrokes.
But the "dont forget to register button is annoying. It wont be hard to find a key on Google anyway :D