WimpWall is a free desktop wallpaper interchanger, easy to use and highly flexible. The program automatically starts with Windows and chooses random images as wallpapers from a folder you choose. You can choose more than one folder if you want.
WimpWall places the image in the centre, and if you need to improve the image it will adjust it. It needs no other program, as it does everything by itself. It works with JPEG and BMP images.
Remember that the images have to be in folders. WimpWall doesn`t work with individual images.
If you get bored of the same wallpaper, WimpWall is your program.