If you translate the DtHelp.msg file, create a new formatting table, or modify the sample table (fmt_tbl.msg), you must update the message catalog used by the Help System.
Use this command syntax to generate the catalog file:
gencat file.cat file.msg
Message catalogs for the standard desktop applications are located in the /usr/dt/lib/nls/msg/lang directory. To install a message catalog, refer to your operating system documentation for guidelines.
gencat (1) man page