Most people let the wallpaper on their computer desktop sit forever, without ever even thinking of a change. Others go through different images daily, and still get bored. Wallperizer is aimed at the second crowd, automatically changing desktop wallpaper on a regular basis.
The software can take the background images from any folder on a hard disk, and provides a monthly calendar as a bonus. The interface is somewhat amateurish, but offers options to change the way the calendar and pictures are displayed.
This feature set may trail that of some other similar programs, but Wallperizer does have the significant advantage of being free. For people who can't stand looking at the same background image day after day, this download may be worth a try.