@Waterfall_13, essentially, if this even works, it needs to be tested on a clean .exe file.
The situation is that I need this change to work with the existing changes in my .exe file =)
I'm not going to revert all my added artifacts and classes just to gain access to new buildings. So, testing it on a clean .exe is pointless for me, as it's a functionality that exists in a vacuum and can't be used in my mod =(