Battlefield 1942 CD Crack is a no go

[Akumajou]

VoD or Noobie, I don't understand how this NoCD trick works. I bought BF1942 so I have a key and all... I tried replacing BF1942's EXE with those two cracks you suggest, but they don't work (server disconnects). Why do you say to use two different crack EXEs when you're just going to be using one? What am I missing? Those cracks you suggest are just replacement EXEs, is there supposed to be something else? This trick is supposed to work on non-cracked servers, right?