Microsoft KB Archive/194168

= Dns.exe Dr.Watson When Changing the TTL of a Cached Record =

Article ID: 194168

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0, Terminal Server Edition
 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Server 4.0 Enterprise Edition

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This article was previously published under Q194168



SYMPTOMS
Your computer running both Windows NT Server and the Domain Name Service (DNS) may receive the following Dr. Watson access violation when you attempt to use DNS Administrator to change the time-to-live (TTL) of cached records in a delegating subzone:

Access Violation (0xC0000005), Address: 0x0100bb78 or 0x0100c6c1 on

DNS.exe.

You may also receive this error:

Unable to register record. Please correct the record

data and try again.

Following these errors, the DNS server will stop and it will be necessary to restart the service to resume DNS service.



CAUSE
The delegating DNS server is not authoritative for the cached record. The delegating DNS server should not be able to change the properties of a cached record.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

152734 How to Obtain the Latest Windows NT 4.0 Service Pack



STATUS
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.



MORE INFORMATION
For additional information, please see the following article in the Microsoft Knowledge Base:

154556 Delegation Requires a Stop and Restart of the DNS Server

160459 DNS Delegation May Fail

159310 Updated Version of DNS.EXE fixes Several Problems

Additional query words: NTS DNS Delegation Delegating Delegated Dr.Watson Access Violation Exception

Keywords: kbbug kbfix KB194168

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