I had same problem as Smurfy, after applying 2.01 patch, then server patch, the server would CTD.
So I copied il2fb.exe, wrapper.dll, mg_snd.dll, and mg_snd_sse.dll from 2.0n server to the 2.01 server, and it started fine. I think, though, that it was only the mg_snd and mg_snd_sse dlls that were changed. Newer versions of those files are known to cause CTD with older sound cards, and the ones I had saved were from my 4.08 server.