Tom,

See my 3/19/07 thread "EventID 4521 warning after SP2 upgrade" about this
topic.

- Ron

"Tom Beekmans" wrote:

> After a clean install WY3K enterprise on DC with SP2, these two errors are
> generated in the DNS log.
> It seems a SP2 problem, does anyone have solution?
>
> thanks,
>
> Tom Beekmans
>
>
> The description for Event ID ( 4521 ) in Source ( DNS ) cannot be found. The
> local computer may not have the necessary registry information or message DLL
> files to display messages from a remote computer. You may be able to use the
> /AUXSOURCE= flag to retrieve this description; see and Support for
> details. The following information is part of the event: 9002; ..
>
>
>
> The DNS server has encountered numerous run-time events. To determine the
> initial cause of these run-time events, examine the DNS server event log
> entries that preceded these run-time events. The data is the number of events
> that have been suppressed in the last 60 minute interval.
>
>
>