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Error message when you run the Dirquota.exe tool in Windows Server 2003 R2: �STOP 0x00000050�

View products that this article applies to.


Consider the following scenario:
  • You have a Microsoft Windows Server 2003 R2-based computer on which File Server Resource Manager (FSRM) is installed.
  • You run the Dirquota.exe tool on a volume that is copied from another computer.
In this scenario, the computer stops responding (hangs). Additionally, you receive a Stop error message that resembles the following:
STOP 0x00000050 (parameter1, parameter2, parameter3, parameter4)
Page Fault in Non-Paged Area
Note The parameter values may vary.

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This problem occurs if the file system filter manager incorrectly calculates the string length of file names when a hard link is created or during any renaming operation. Specifically, this problem occurs if the stream name is longer than the file name.

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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 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.


No prerequisites required.

Restart requirement

You must restart the 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 item in Control Panel.
Windows Server 2003, x86-based versions
File nameFile versionFile sizeDateTime
Windows Server 2003, x64-based versions
File nameFile versionFile sizeDateTime
Windows Server 2003, Itanium-based versions
File nameFile versionFile sizeDateTime

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Windows Server 2003 Service Pack 2.

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More information

For more information about the terms that are used to describe 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

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Keywords: KB921478, kbqfe, kbfix, kbbug, kbwinserv2003sp2fix, kbautohotfix

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Article Info
Article ID : 921478
Revision : 3
Created on : 10/9/2011
Published on : 10/9/2011
Exists online : False
Views : 137