Vulnerabilities in Starforce Professional 3.xx (all builds)

Hi all! Found a largest backdoor in drivers from Starforce Professional Copy Protection System (version 3.00 and above). This drivers leaves after game uninstalling, even after uninstalling drivers are active. By this drivers any user with any right (include Guests) can execute any code in ring-0. Full test see here: http://www.freewebs.com/starforcemeat