Microsoft KB Archive/256318

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Knowledge Base

Article ID: 256318

Article Last Modified on 11/1/2006


  • Microsoft Windows NT Server 4.0 Standard Edition

This article was previously published under Q256318

IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry


Microsoft Domain Name Service (DNS) may not start and the following error messages may be recorded in the Event log:

Event ID:501
DNS Server zone xxxx has a missing or corrupt zone type in registry. Fix type, or delete from registry and recreate with DnsAdmin.

Event ID: 500
Source: DNS
DNS Server zone xxxx has invalid or corrupt registry data. Delete it's registry data and recreate with DnsAdmin.

Event ID: 7023
Source: Service Control Module
The Microsoft DNS Server Service terminated with the following error:
The data is invalid


The Notify option may have been used on one or more of the automatically created zones. This occurs if an IP address is specified in the zone properties or the Only Allow Access from Secondaries Included on Notify List option is enabled. The following zones are automatically created and should not have any Notify options selected:


WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To resolve this problem, delete the pertinent automatically created zone from the registry by using Regedt32.exe. The zones are located in the following area:


Click the zone, and then click Delete on the Edit menu. Quit Regedt32.exe, and then type the following line at a command prompt:

net start dns

The deleted zone is automatically created when the DNS service starts.


Microsoft has confirmed that this is a problem in the DNS service in Windows NT 4.0.


Automatically created zones are not normally present in the registry. They are created when the DNS service is started. When the Notify option is set, however, the zone is present in the registry in location listed in the "Resolution" section.

Keywords: kbenv kberrmsg kbprb KB256318