Hello,
Got this error and checked that everything was installed correctly (ran installer as admin, unzipped files etc)
Looking into it more I see the game is trying to make a call to a non existant registry entry
HKLM\SOFTWARE\Wow6432Node\Microsoft\CTF\KnownClasses
Can't play that gam anymore. . .
Started a new game with no swarm so we will see if it occurrs (or another similar oe anyway).