@LukeAlmighty 
Probably used some malware tier DRM
@LukeAlmighty It's the less used one. SecureROM is the infamous one and that one is straight up malware and it bricks Windows 10 and up.
@matrix I know that Starforce was an amazing one :D
@LukeAlmighty
That one bricks new Windows installs too I believe
@matrix
I guess it had some problematic bugs.