VMS Help CLI Routines, CLI$DISPATCH, Condition Values Returned  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    CLI$_INVREQTYP     Calling process did not have a CLI to perform
                       this function or the CLI did not support the
                       request.
    CLI$_INVROUT       CLI$DISPATCH unable to invoke the routine. An
                       invalid routine is specified in the command
                       table, or no routine is specified.