Microsoft KB Archive/836769

= Handle leak in an IP helper function in Windows Server 2003 =

Article ID: 836769

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 x64 Edition

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SYMPTOMS
When a program uses an IP helper function, such as GetPerAdapterInfo, a handle leak may occur. When this problem occurs, the affected program may continue to use an increasing amount of server resources.



CAUSE
This problem may occur when the following conditions are both true:
 * Your program uses LoadLibrary calls and FreeLibrary calls to load and to unload the Iphlpapi.dll file.
 * A handle to the TCP/IP driver is not closed correctly when the Iphlpapi.dll file is unloaded.



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) 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 --  26-Feb-2004  11:32  5.2.3790.134       84,992  Iphlpapi.dll Windows Server 2003, 64-Bit Edition   Date         Time   Version            Size    File name --  26-Feb-2004  11:28  5.2.3790.134      228,864  Iphlpapi.dll     IA-64 26-Feb-2004 11:32  5.2.3790.134       84,992  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 of this article.



MORE INFORMATION
For additional information, 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

For additional information about IP helper functions, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/aa366071.aspx

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe kbwinserv2003presp1fix KB836769

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