IDK if Mids/Pines creates any system registry entries (probably does), but you should simply be able to delete the root folder for the app as I believe it's somewhat portable of an app.
IE: Mine is installed into C:\Games\COX\Titan Network\Pine's Hero Designer
So if I backup into the C:\Games\COX\Titan Network folder. then I could just delete the Pine's Hero Designer sub-folder. You'd have to do some icon cleanup as well.