Microsoft KB Archive/822713

= GetHostByName function does not return IP addresses in the correct order =

Article ID: 822713

Article Last Modified on 7/24/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems

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SYMPTOMS
On a Microsoft Windows Server 2003-based computer that has multiple IP addresses, the GetHostByName function does not return IP addresses in the correct order. The first IP address that is returned is the one with the lowest number instead of the primary IP address. Because the ping command uses GetHostByName to resolve a name, you will also see this behavior if you use this command.



CAUSE
This problem is caused by a code defect in the Iphlpapi.dll file.



Service pack information
To resolve this problem, obtain the latest service pack for Windows Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

889100 How to obtain the latest service pack for Windows Server 2003

Hotfix information
A supported hotfix is now 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 this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

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

Prerequisites
No prerequisites are required.

Restart requirement
You must restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

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 tool in Control Panel.

Windows Server 2003, 32-bit versions
  Date         Time   Version        Size  File name -  15-Jul-2003  00:30  5.2.3790.68  84,480  Iphlpapi.dll

Windows Server 2003, 64-bit Itanium-based versions
  Date         Time   Version         Size  File name      Platform -  15-Jul-2003  00:33  5.2.3790.68  228,864  Iphlpapi.dll   IA-64 15-Jul-2003 00:30  5.2.3790.68   84,480  Wiphlpapi.dll    x86



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Windows Server 2003 Service Pack 1.



MORE INFORMATION
For more information about Microsoft software updates, 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

Keywords: kbhotfixserver kbqfe kbwinserv2003sp1fix kbbug kbfix kbqfe kbwinserv2003presp1fix KB822713

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