The Certificate Library (CL) module is responsible for performing certain operations when OCSF attaches to and detaches from it. CL modules use _init in conjunction with the DLLMain routine to perform those operations, as shown in the following example.

_init
   BOOL_init( )
   {
     BOOL rc;
     rc =  DllMain(NULL, DLL_PROCESS_ATTACH, NULL);
     return (rc);
   }