I'm writing an installer and need to change all users' wallpaper. I can do this from the group policy editor GUI, but need to do so from my installer. I can't just edit the registry as it gets reset by a GPO on login. How do I apply the relevant administrative template via programatically (preferably cmd.exe or via the registry)? (for interest, it's User Configuration Administrative Templates Desktop Desktop Desktop Wallpaper [sic] Any help would be appreciated. Thanks!