|The progam may have its own uninstaller. If you still have the same version available then re-install to the same folder and then view the folder for an uninstaller.|
If that won't work then download Ccleaner Slim from the link below and run the registry module to remove the orphan registry entries. I suggest you say yes when prompted to make a backup.
Ccleaner cleaner module is a very useful utility. I use it almost daily.