You can get the free version of Revo Uninstaller from here. LINK. It's all I have used for years to remove any installed software. Run it, have it scan on Moderate and delete only the items it marks in bold print. It beats the pants off of Add/Remove and will work when other methods fail.
Revo uses the programs own uninstaller, then just cleans up the mess left behind. I use it and I trust it or I wouldn't recommend it.