The problem I’m having is that I can’t reinstall the CDROM version of Critical Point. The problem started when I moved the game folder to another location and it stopped working. The disc said that it could not uninstall the game and I should do so manually. So I deleted the game folder myself. No problem, right? Well now I want to reinstall the game but the disc does not show an option to reinstall. In fact, even copying the files directly onto my PC from the disc will not work. It keeps insisting ‘Illegal registry, uninstall manually’.
(The problem has been solved! See below for instructions.)