I have discovered a major flaw with this program.
While running some tests on my server, I discovered that running a server as "Pure" (Content-Check On) does exactly the same job as this application.
What I did was I ran Pure server, with the modified BF1942.exe of the Anticheat placed in my main demo folder "battlefield 1942 Secret Weapons of WWII Demo".
I started an Internet server, and tried to join it remotely from a copy of the demo I made.
I then got the typical "Data Differs From Server" error, which lead me to conclude that the Content-Check system the demo uses not only verifies modified RFA files in the Archives fodler and it's subfolders, but also unpure application files (i.e. hacks) in the main demo folder.
For this reason, I suggest that people stop using it. Running a will do exactly the same job. This method however has not been proven to stop hackers that use application files that are exterior to the demo (located in another folder than the main demo folder) from joining servers, but IMO it should.