The Nslookup.exe utility does not use all the suffixes in the DNS suffix search list if the total length of the DNS suffix search list is longer than 255 characters on a computer that is running Windows Server 2008 or Windows Vista

On a computer that is running Windows Server 2008 or Windows Vista, the Nslookup.exe utility does not use all the suffixes in the DNS suffix search list if the total length of the list exceeds 255 characters. This behavior causes the Nslookup.exe utility to use only the first 255 characters in the list.

The Nslookup.exe utility incorrectly sets the maximum length of the DNS suffix search list to 255 characters.

Note After you install the hotfix, the maximum length limit of 255 characters for the DNS suffix search list is removed. Instead, an array is used to store the DNS suffix search list. The maximum length limit of the array is 50*255 characters.

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.

Prerequisites

To apply this hotfix, the computer must be running one of the following operating systems:

• Windows Vista Service Pack 2 (SP2)
• Windows Server 2008 Service Pack 2(SP2)

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfix.

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.

For all supported x86-based versions of Windows Server 2008 and of Windows Vista

For all supported Itanium-based versions of Windows Server 2008

For all supported x64-based versions of Windows Server 2008 and of Windows Vista

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

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Additional file information for Windows Server 2008 and for Windows Vista

Additional files for all supported x86-based versions of Windows Server 2008 and of Windows Vista

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

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