If you have a digital camera packed full of photos you can't wait to share with your friends, or a collection of photos and wallpaper images on your computer, SlideShow Desktop is a great way to show your photos at their best. SlideShow Desktop has been carefully designed to make it simple and fun to display photo slide shows on your Windows Desktop, regardless of your computer experience.
Creating a slide show is as simple as selecting a folder (or your digital camera's memory stick) from the SlideShow browse window and pressing play. You can specify the interval between each slide change and modify each photo's filename, orientation, and display size during playback.
Additionally, SlideShow Desktop has many features for managing your wallpaper, modifying your Desktop appearance, e-mailing your photos to friends, and printing your photos as enlargements and posters.
Source : http://download.cnet.com