Desktop Slideshow is a free wallpaper changer to show slideshow of photos on desktop. You can provide the path of folder that contains photos, and specify the time after which photos should be changed, and Desktop Slideshow takes care of the rest.
Desktop Slideshow is a nice way to automatically change wallpaper on desktop. Instead of showing normal wallpapers, you can set your photos as wallpapers, and see a nice slideshow of photos on your desktop.
Desktop Slideshow lets you specify the image formats that you want to use as wallpaper. You can choose Gif, JPEG, PNG, and BMP images. You can also specify that Desktop Slideshow should loop through the images. Also check out animated wallpaper software.
Desktop Slideshow is completely free. Download here.