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A DNS zone transfer between two Windows Server 2003-based DNS servers generates incomplete zone data when the DNS transfer process stops unexpectedly

Support for Windows Server 2003 ended on July 14, 2015

Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

This article has been archived. It is offered "as is" and will no longer be updated.
When a Domain Name System (DNS) zone transfer process between two Windows Server 2003-based DNS servers stops unexpectedly because of an issue on the master server, the transfer process generates incomplete zone data on the secondary server. Users may encounter network-related exception errors if they use the secondary server to perform name resolutions.

For example, this issue may occur when the master server encounters a power failure or a hardware failure.
This problem occurs because no transaction logging mechanism exists during the DNS zone transfer process. If this process is stopped by an exception, incomplete zone data may be generated. However, the DNS server is not aware of the problem.

Hotfix information for Windows Server 2003

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


To apply this hotfix, the computer must have Windows Server 2003 Service Pack 1 or Service Pack 2 installed.

Restart requirement

You have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

Registry information

To use this hotfix, you do not have to make any changes to the registry.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Windows Server 2003 Service Pack 1, x86-based version
File nameFile versionFile sizeDateTimePlatformSP requirement
Dnsperf.hNot Applicable6,64226-Apr-200804:36Not ApplicableSP1
Dnsperf.iniNot Applicable11,59726-Apr-200804:36Not ApplicableSP1
Tcpip6.sys5.2.3790.3161225,98420-Jun-200810:04Not ApplicableSP1
Windows Server 2003 Service Pack 2, x86-based version
File nameFile versionFile sizeDateTimePlatformSP requirement
Dnsperf.hNot Applicable6,64226-Apr-200804:36Not ApplicableSP2
Dnsperf.iniNot Applicable11,59726-Apr-200804:36Not ApplicableSP2
Tcpip6.sys5.2.3790.4318234,49620-Jun-200810:19Not ApplicableSP2
Windows Server 2003 SP1, Itanium-based version
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
6to4svc.dll5.2.3790.2771362,49625-Jun-200911:42IA-64SP1Not Applicable
Afd.sys5.2.3790.3229584,19225-Jun-200911:42IA-64SP1Not Applicable
Dns.exe5.2.3790.33671,148,92825-Jun-200911:42IA-64SP1Not Applicable
Dnsperf.dll5.2.3790.329526,62425-Jun-200911:42IA-64SP1Not Applicable
Dnsperf.hNot Applicable6,64225-Jun-200911:42Not ApplicableSP1Not Applicable
Dnsperf.iniNot Applicable11,59725-Jun-200911:42Not ApplicableSP1Not Applicable
Mswsock.dll5.2.3790.3161784,89625-Jun-200911:43IA-64SP1Not Applicable
Tcpip.sys5.2.3790.31611,308,67225-Jun-200911:43IA-64SP1Not Applicable
Tcpip6.sys5.2.3790.3161737,02425-Jun-200911:44Not ApplicableSP1Not Applicable
W03a2409.dll5.2.3790.336051,71225-Jun-200911:44IA-64SP1Not Applicable
Windows Server 2003 SP2, Itanium-based version
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Afd.sys5.2.3790.4392584,19225-Jun-200911:45IA-64SP2Not Applicable
Dns.exe5.2.3790.45371,150,46425-Jun-200911:45IA-64SP2Not Applicable
Dnsperf.dll5.2.3790.446026,62425-Jun-200911:45IA-64SP2Not Applicable
Dnsperf.hNot Applicable6,64225-Jun-200911:45Not ApplicableSP2Not Applicable
Dnsperf.iniNot Applicable11,59725-Jun-200911:45Not ApplicableSP2Not Applicable
Mswsock.dll5.2.3790.4318789,50425-Jun-200911:46IA-64SP2Not Applicable
Tcpip.sys5.2.3790.43181,310,20825-Jun-200911:46IA-64SP2Not Applicable
Tcpip6.sys5.2.3790.4318764,41625-Jun-200911:46Not ApplicableSP2Not Applicable
W03a3409.dll5.2.3790.452941,98425-Jun-200911:46IA-64SP2Not Applicable
Windows Server 2003, x64-based version
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
6to4svc.dll5.2.3790.2771124,41625-Jun-200911:43x64SP1Not Applicable
Afd.sys5.2.3790.3229299,52025-Jun-200911:44x64SP1Not Applicable
Dns.exe5.2.3790.3367780,28825-Jun-200911:44x64SP1Not Applicable
Dnsperf.dll5.2.3790.329514,33625-Jun-200911:44x64SP1Not Applicable
Dnsperf.hNot Applicable6,64225-Jun-200911:44Not ApplicableSP1Not Applicable
Dnsperf.iniNot Applicable11,59725-Jun-200911:44Not ApplicableSP1Not Applicable
Mswsock.dll5.2.3790.3161491,52025-Jun-200911:45x64SP1Not Applicable
Tcpip.sys5.2.3790.3161829,95225-Jun-200911:45x64SP1Not Applicable
Tcpip6.sys5.2.3790.3161363,13625-Jun-200911:45x64SP1Not Applicable
W03a2409.dll5.2.3790.336053,24825-Jun-200911:45x64SP1Not Applicable
Windows Server 2003 SP2, x64-based version
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Afd.sys5.2.3790.4392292,35225-Jun-200911:47x64SP2Not Applicable
Dns.exe5.2.3790.4537780,28825-Jun-200911:47x64SP2Not Applicable
Dnsperf.dll5.2.3790.446014,33625-Jun-200911:47x64SP2Not Applicable
Dnsperf.hNot Applicable6,64225-Jun-200911:47Not ApplicableSP2Not Applicable
Dnsperf.iniNot Applicable11,59725-Jun-200911:47Not ApplicableSP2Not Applicable
Mswsock.dll5.2.3790.4318493,05625-Jun-200911:47x64SP2Not Applicable
Tcpip.sys5.2.3790.4318784,89625-Jun-200911:48x64SP2Not Applicable
Tcpip6.sys5.2.3790.4318375,80825-Jun-200911:48x64SP2Not Applicable
W03a3409.dll5.2.3790.452943,52025-Jun-200911:48x64SP2Not Applicable
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More information
A zone transfer may occur in any of the following scenarios:
  • The refresh interval expires for the zone.
  • A master server notifies a secondary server of zone changes.
  • The DNS Server service is started at a secondary server for the zone.
  • The DNS console is used at a secondary server for the zone to manually start a transfer from its master server.
Zone transfers are always started at the secondary server for a zone and sent to their configured master servers. The master servers act as the source for the zone. Master servers can be any other DNS server that loads the zone, such as the primary server for the zone or another secondary server. When the master server receives the request for the zone, the master server can reply with either a partial transfer or a full transfer of the zone to the secondary server.

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
DNS secondary zone

Article ID: 969299 - Last Review: 01/15/2015 18:36:51 - Revision: 3.0

Microsoft Windows Server 2003, Datacenter Edition (32-bit x86), Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems, Microsoft Windows Server 2003, Datacenter x64 Edition, Microsoft Windows Server 2003, Enterprise x64 Edition, Microsoft Windows Server 2003, Enterprise Edition (32-bit x86), Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems, Microsoft Windows Server 2003, Standard x64 Edition, Microsoft Windows Server 2003, Standard Edition (32-bit x86)

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