The routines in the CSUB are linked to become a Windows 32-bit DLL, by being made into a library and then converted to a DLL by combining the library and a definitions file using a DLL-builder. The definitions file should contain, as a minimum, a LIBRARY section naming the library and an EXPORTS section naming each CSUB entry point. See the example files TEST.DEF and TEST.MAK to see how this is done using the Microsoft 32-bit linker.
