I'm having this problem too where the Codemeter driver can't be accessed. I could only find this appcleaner for mac, but I have Windows 7.
The instructions given above to uninstall/install CM driver doesn't make any sense. First; I don't have any mounted drive anywhere. Second; there is no way to uninstall other than via Windows control panel. Third; when you install this Codemeter runtime kit there is no option to choose anything called "KEXT3G".
The only reply I got from support today was a question like they didn't even read my email. >:-P