WIN2K DNS ERROR

Please find below error notification in my Event viewer:
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Event Type: Error
Event Source: NETLOGON
Event Category: None
Event ID: 5774
Date: 03/10/2001
Time: 14:11:20
User: N/A
Computer: server01
Description:
Registration of the DNS record ‘_kpasswd._udp.ORANGE.orangefan.co.uk. 600 IN SRV 0 100 464 server01.ORANGE.orangefan.co.uk.’ failed with the following error:
DNS server unable to interpret format.
Data:
0000: 29 23 00 00 )#..
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It keeps cropping up repeatedly everyday. Can anyone suggest how correct whatever the problem it’s referring to.

Many thanks