Microsoft KB Archive/898902

= The MFC-based application that runs on the original release version of Windows Server 2003 leaks file handles when it opens files from a Samba share location =

Article ID: 898902

Article Last Modified on 3/26/2007

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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)

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SYMPTOMS
Consider the following scenario:
 * You have a Microsoft Foundation Classes (MFC)-based application that runs on the original release version of Microsoft Windows Server 2003.
 * This application opens files that are shared from a Samba share location.

In this scenario, you notice that your application leaks file handles.

However, you do not experience this problem if one of the following conditions is true:
 * You run the application on a Microsoft Windows XP-based computer.
 * The application is linked to the Mfc42.dll file instead of to the Mfc42u.dll file.



CAUSE
This occurs because of a code problem in the version of MFC that is included with the original release version of Windows Server 2003.

When an application uses the CFile::Open method to open a file from a Samba share location, the Mfc42u.dll file calls its internal function to create a new file handle. However, the Mfc42u.dll file does not call its internal function later to release this handle.



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

Prerequisites
No prerequisites are required to apply this hotfix.

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.



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 2.



MORE INFORMATION
For more information about this topic, 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

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Keywords: kbwinserv2003sp2fix kbwinserv2003presp2fix kbhotfixserver kbbug kbfix kbqfe kbwinserv2003presp1fix kbpubtypekc KB898902

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