/sys$common/syshlp/helplib.hlb HELP, /MESSAGE, Qualifiers, /SECTION_FILE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    /SECTION_FILE=*
    /SECTION_FILE=file-spec

    Identifies the specified message section file to the system so
    that Help Message can interpret the $STATUS values for the
    messages in that file. The default file specification is
    SYS$MESSAGE:.EXE. Specifying /SECTION_FILE=* automatically
    includes all OpenVMS-supplied message section files.

                                   NOTE

       The results of using this qualifier are entirely independent
       from those created by the SET MESSAGE command.  The Help
       Message utility and Message utility do not interact. You must
       separately code each utility to obtain the results you want.