register an ActiveX or COM dll if not already registered
int okutil_check_register_COM_server( LPCSTR lpcszFulpathFilename, BOOL bRegister = TRUE )
0 = already registered, nothing is done
1 = not registered yet, or not in the correct path, and redo registeration succeeded
-1 = need to register but failed
-2 = need to register but file not found
origin.h