/CLI=cli-filespec
       /NOCLI

    Specifies the name of a command language interpreter (CLI) to be
    used by the subprocess. The default CLI is the same as that of
    the parent process (defined in SYSUAF). If you specify the /CLI
    qualifier, the attributes of the parent process are copied to
    the subprocess. The CLI you specify must be located in SYS$SYSTEM
    and have the file type .EXE. This qualifier is used only with the
    /NODETACH qualifier.