DNS Management snap-in console stops responding when you edit the Name Servers tab in Windows Server 2008 R2

Symptoms

Assume that you use the DNS Management snap-in (Dnsmgmt.msc) to manage DNS servers on a computer that is running Windows Server 2008 R2. However, the DNS Management snap-in console stops responding when you try to edit the Name Servers tab.

For example, consider the following scenario:

You open the DNS Management snap-in, and then select a DNS server.
You right-click a zone to open the Properties dialog box.
On the Name Servers tab, you click Delete to delete a DNS server.
A dialog box that contains a message that resembles the following appears:

Do you want to delete host record <Domain name>? [<IP address>]

In this scenario, the DNS Management snap-in console stops responding

Resolution

Hotfix information

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:

http://support.microsoft.com/contactus/?ws=supportNote 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.

Prerequisites

To apply this hotfix, you must be running Windows Server 2008 R2 or Windows Server 2008 R2 Service Pack 1 (SP1).

For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

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

Restart requirement

You do not have to restart the computer after you apply this hotfix if DNS Management snap-in is not running.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Server 2008 R2 file information notes

The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

Version	Product	Milestone	Service branch
6.1.760 0.21xxx	Windows Server 2008 R2	RTM	LDR
6.1.760 1.21xxx	Windows Server 2008 R2	SP1	LDR

The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x64-based versions of Windows Server 2008 R2

File name	File version	File size	Date	Time	Platform
Dnsmgmt.msc	Not applicable	145,867	10-Jun-2009	20:38	Not applicable
Dnsmgr.dll	6.1.7600.21010	1,485,312	16-Jul-2011	05:20	x64
Dnsmgmt.msc	Not applicable	145,867	05-Nov-2010	01:55	Not applicable
Dnsmgr.dll	6.1.7601.21772	1,484,800	16-Jul-2011	05:26	x64

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

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

Additional file information

Additional file information for Windows Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2

File name	Amd64_41a0db2cba8f125bae5e7a55039765cd_31bf3856ad364e35_6.1.7600.21010_none_1250b9a5037f9fd8.manifest
File version	Not applicable
File size	709
Date (UTC)	18-Jul-2011
Time (UTC)	16:03
Platform	Not applicable

File name	Amd64_d142583357b84ba05aed84b8437e438f_31bf3856ad364e35_6.1.7601.21772_none_0075e6dd2e18d9d1.manifest
File version	Not applicable
File size	709
Date (UTC)	18-Jul-2011
Time (UTC)	16:03
Platform	Not applicable

File name	Amd64_microsoft-windows-dns-server-snapin_31bf3856ad364e35_6.1.7600.21010_none_f3388a703de9eeb7.manifest
File version	Not applicable
File size	14,700
Date (UTC)	16-Jul-2011
Time (UTC)	05:55
Platform	Not applicable

File name	Amd64_microsoft-windows-dns-server-snapin_31bf3856ad364e35_6.1.7601.21772_none_f4e030603b3f01b5.manifest
File version	Not applicable
File size	14,700
Date (UTC)	16-Jul-2011
Time (UTC)	06:13
Platform	Not applicable

File name	Update.mum
File version	Not applicable
File size	2,805
Date (UTC)	18-Jul-2011
Time (UTC)	16:03
Platform	Not applicable