To completely uninstall AB Commander, it's not enough to simply delete its program files from the installation folder. To completely remove AB Commander from your computer, follow the instructions below.
IMPORTANT: If your computer is configured for several user accounts, login into the same user account that you were logged in when you installed AB Commander. If you use Windows Fast User Switching, log off from all other accounts before trying to uninstall AB Commander.
Open Windows Control Panel, open the Programs and Features (or Add/Remove Programs) item, and use it to uninstall AB Commander.