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"Stop error code 0x000000C2 BAD_POOL_CALLER" in Windows Server 2003

Support for Windows Server 2003 ended on July 14, 2015

Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

SYMPTOMS
On your Microsoft Windows Server 2003-based computer, you may receive the following Stop error message:
STOP 0x000000C2 BAD_POOL_CALLER (0x00000044, 0x00000000, 0x80000000, 0x00000000)
Note The Stop error occurs in the Ntoskrnl.exe file. This problem may occur when the computer starts or while the computer is running normally.
CAUSE
This problem may occur if the AppCompat cache tries to free a cache entry with a null file name.
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 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 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

No prerequisites are required.

Restart requirement

You must restart the computer after you apply this hotfix.

Note When you apply this hotfix, the Ntoskrnl.exe file is updated. You must restart the computer for the new file to take effect.

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 editions
   Date         Time   Version       Size       File name   ---------------------------------------------------------   11-Nov-2004  14:51  5.2.3790.231  2,407,936  Ntkrnlmp.exe   11-Nov-2004  02:09  5.2.3790.231  2,064,896  Ntkrnlpa.exe   11-Nov-2004  02:09  5.2.3790.231  2,109,952  Ntkrpamp.exe   11-Nov-2004  14:55  5.2.3790.231  2,208,256  Ntoskrnl.exe
Windows Server 2003, Enterprise Edition for Itanium-based Systems
   Date         Time   Version       Size       File name   ---------------------------------------------------------   11-Nov-2004  14:46  5.2.3790.231  5,606,400  Ntkrnlmp.exe
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 application compatibility, visit the following Microsoft Web site:For additional information about the terminology that is used in this article, 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
C2
Properties

Article ID: 888431 - Last Review: 01/13/2012 20:01:00 - Revision: 4.0

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, Microsoft Windows Small Business Server 2003 Standard Edition, Microsoft Windows Small Business Server 2003 Premium Edition

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