manually uninstall add on programme

i have just bought the full version of gear factory 6 ,in the demo version it says not to load the full payed for version over the demo ,i have unistalled the programme, but the gear icon still appears in my autocad bar

,heres the email i received from cwatt

You need to go into your AutoCAD program and manually uninstall the program, and then close everything down, restart your computer and install the new version.

confused how to manually delete it from inside autocad

Using Explorer check to see if there is a Gear Factory 6 folder nested amongst the folders for AutoCAD. Is there? If so, delete it. At least that's how I read it.