Automatic Wallpaper Changer does its job perfectly: change the desktop wallpaper periodically, using the choices of the user and the time interval set by them.
As is usual, Automatic Wallpaper Changer lets you adjust the images so they fit your screen perfectly, or keep the original format (you can opt to have them to the left/right, centre or in the corner). You can even specify that images smaller than a specific size are shown in a mosaic.
Automatic Wallpaper Changer works in the background, and to open it you just have to click on the icon that is in the system tray next to the Windows clock. All the configurations you do in the program can be saved and restored when you want. The image formats supported are: BMP, JPG, JPEG, GIF, PNG, PCX, TGA and RLE.