UBB.threads PHP Forum Software Community Forums UBB.threads Version 7/8 Support CGI files

I am currently preparing for the 7.3 update (from 7.2.2).

Looking at the server, there seems to be tons of .cgi files (for example in /ubb/Forum1/ etc).

Am I right in thinking that these are now not used and can actually be deleted? Or should I keep them up there.

Is there ANY cgi used in the threads now? Can someone tell me which files from .classic I can safely delete from the server (there's a lot up there!)

Thanks