windows dreamscene or video wallpaper is a utility that allows videos to be used as a desktop wallpapers. if you want to use nice video as your wallpapers you shoud need to activatedreamscence on your windows 7 OS. To do this have small applications you can download it using following url

Windows-7-DreamScene-Activator-Download

After download Windows 7 DreamScene Activator v 1.1, then extract and run and then click enable dreamscene

Now your pc is ready for dreamscene

You can dowload dreamscene wallpaper using follwing url

Click Here to Download DreamScene Wallpapers

After downloading wallpaper Right Click -> set as a Desktop Background

Thank you all