I wonder if this will also fix the issue some people are having with Critical Sections?

Also, it's nice the delete operator works now. I had no idea what that was!

I am totally RE noob, but this diff drawed my attention.

Is the code in appfat.cpp expected to be converted into OO style (usin C++ classes with member functions, constructor, overloaded operators like delete) anytime in future?

Are these functions named based on the PSX symbol files?
I'm wondering because I would be expecting some name mangling for member functions.

Also why cdecl would members functions not be thiscall?

These functions don't exist on the PSX version or older PC versions either. They created the constructors in patch 1.05 when they upgraded VC from 4.20 -> 5.x. The names are just temporary.