In many installations, the text that appears in WTOs may need to be translated to other languages using MVS™ Message Service (MMS). You can use the HZSMSGEN exec to create the MMS source file, which is required input when translating message to other languages. For information about using MMS for message translation, see Translating messages in z/OS MVS Programming: Assembler Services Guide. This section also includes details on how the system uses the NLS skeletons.