Desktop Changer - Version 1.3 Desktop Changer allows wallpapers, Screen Savers, start up and shut down Sounds and Logos to be changed randomly or sequentially at a specific frequency, ie, every start up, every 1,2 days (user definable), preview etc. DTC helps you manage your lists with tools such as Favourite Directories, various types of File Validation and Find Files. Integrates with Screen Saver Changer. Wallpaper changing improved for systems with user logins. Now handles JPEG files.