1    /DESTINATION

    /DESTINATION=file-spec

    Controls where the system will write the snapshot files. By
    default, the system creates the snapshot in the location
    specified by the SYS$REGISTRY logical.

    If you specify the /DESTINATION qualifier but do not provide a
    valid directory, the system creates the snapshot files in the
    directory in which you started the OpenVMS Registry server.

2    /VERSIONS

    /VERSIONS=number

    Specifies how many previous versions of the snapshot files to
    keep.

3    /WAIT

    /WAIT=seconds (default = 90)
    /NOWAIT

    Specifies the maximum amount of time, in seconds, that you are
    willing to wait for command completion.  If the Registry server
    does not complete the request in the specified interval, REG$CP
    returns REG-F-NORESPONSE. The default interval is 90 seconds.
    /NOWAIT is equivalent to specifying /WAIT=0, but there may still
    be a short wait period.