By default, the NET$EVD process is started, and the event
    dispatcher is created and enabled.  Thus, you need not start
    EVD yourself.  However, if you do need to re-start a new
    NET$EVD process, you can do so by:

    $ @sys$system:startup network evd

    You may modify the NET$EVENT_STARTUP.NCL script by invoking
    net$configure, and selecting Option 6 "Configure Event
    Dispatcher".  Choose the ADVANCED option of net$configure if
    you wish to customize the Event Dispatcher.

    If you wish to tailor your Event Dispatcher further (say, to
    block certain events perhaps), you may create a
    NET$EVENT_LOCAL.NCL script, which, if present, will be
    automatically executed immediately following the
    NET$EVENT_STARTUP.NCL script during startup.  If you do not
    have a SYS$MANAGER:NET$EVENT_LOCAL.NCL script on your system,
    you may create one by copying and editing the
    SYS$MANAGER:NET$EVENT_LOCAL.TEMPLATE file.

    Refer to HELP NETWORK_MANAGEMENT STARTUP_SCRIPTS for more
    information concerning the NET$EVENT_LOCAL.NCL script.