Library /sys$common/syshlp/nclhelp.hlb create, event_dispatcher, Exception Messages  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 o  entity class not supported (OpenVMS)

    The Event Dispatcher has not registered with EMAA.  The NET$EVD
    process is probably not running.  For instructions on restarting
    the process, refer to HELP NETWORK_MANAGEMENT EVENT_DISPATCHER.