I think it was patched anyways but;
What it did was allow certain types of hacks to be used with out X trap finding it. However, It also corrupted files such as the HGWC file, in order to do this. So when you played without a hack you were given errors .
The connection between hacks is, if you had a hack found, or a code, what was detected previously (Not Code Detected like, Gun hacks, Box hacks, Ect) It would allow it to work. In a sense replacing the original Xtrap file (which is why it corrupts your Crossfire in regular use). In Essence, you have disabled Xtrap, And the Crossfire Server still processes that you are running the Original file.
I believe this is true, I'm not into coding either, Maybe we can both learn something ^^