Smart Desktop Description

Smart Desktop is a wallpaper changer software that can change your background images (wallpaper) on every startup, once a day or at regular intervals.
It works on both the standard and the Active Desktop environment.
Smart Desktop randomly selects and changes your Windows wallpaper from a list that you have selected. Also has a nice preview window as well as a settable timer in which it waits for the specified time before changing the wallpaper.
It has the power to display JPG,BMP,EMF...

Screenshot