Windows Vista brings us Windows Dreamscene,which pulls us out of the idea that desktop background can only be pictures. Never had a OS made our computer so beautiful. However,Windows Dreamscene is not so good because it only support WMV and MPEG.As a result, if there is a RMVB or AVI video, we need to convert it into WMV or MPEG. What a pity?
Now we can set videos of any format as your desktop background, for i have found a way to make it. The first thing that you need to do is to download K-lite codec pack and install it.

Then hit "orgnize" to open file options.Uncheck "hide extensions for known file types".

Now select a video to your taste and rename its extension name to WMV or MPEG. You make it.
Enjoy!
www.vista123.net , tweak and customize your Vista easily.
