Command Line Compiler in 3.3.0

Since the start of Unity 3 I've created a command line compiler on our server (Windows 2003) which detects and builds new versions of our unity games. It was using 3.1.0 until I upgraded it to 3.3.0 and it now is throwing errors upon starting up.

I've tried the compiler on other machines and it seems to work without a hitch. I downgraded the unity installation on the server back to 3.1.0 and it worked perfectly once again. It seems that 3.3.0 isn't working on the server, the editor log has the following errors:

ERROR: SymGetLineFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 05E04236) 05E04236 (mono): (filename not available): mono_object_is_alive ERROR: SymGetLineFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 05EF4FC2) 05EF4FC2 (mono): (filename not available): mono_unity_socket_security_enabled_set

Does anyone know why this is happening and how I can fix it?