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Service cannot access the \?? namespace in Windows XP

Article ID: 978835 - View products that this article applies to.

Hotfix Download Available

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SYMPTOMS

Consider the following scenario:

You install security update MS09-012 (956572) on a computer that is running Windows XP.
You have a service that runs under the Network Service account and that accesses the \?? namespace.

In this scenario, the service cannot access objects under the \?? namespace, and you receive an "Access denied" error message.

For example, you install security update MS09-012 on a computer that has the SQL server service installed. Then, you run the service under the Network Service account. In this scenario, you may encounter one of the following issues:

Issue 1

You cannot create a database that has the FileStream feature enabled, and you receive an "Access denied" error.
Issue 2

You cannot open an existing database that has the FileStream feature enabled, and you receive the following error message:
Database <database_name> cannot be opened due to inaccessible files or insufficient memory or disk space

When Issue 1 or Issue 2 occurs, the SQL server error log contains information that resembles the following:

FCB::Startup () failed: Could not open file <file name> for file number 65537. OS error: 0x80070005(Access is denied.).

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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 the problem described in this article. 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:

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

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

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

To apply this hotfix, your computer must be running Windows XP Service Pack 2 (SP2) or Windows XP Service Pack 3 (SP3).

For more information about how to obtain a Windows XP service pack, click the following article number to view the article in the Microsoft Knowledge Base:

322389

(http://support.microsoft.com/kb/322389/ )

How to obtain the latest Windows XP service pack

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English (United States) version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows XP file information notes

In addition to the files that are listed in these tables, this hotfix also installs an associated security catalog file (KBnumber.cat) that is signed with a Microsoft digital signature.

For all supported x86-based versions of Windows XP

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File name	File version	File size	Date	Time	Platform	SP requirement	Service branch
Services.exe	5.1.2600.3661	110,592	23-Dec-2009	16:36	x86	SP2	SP2QFE
Services.exe	5.1.2600.5922	110,592	23-Dec-2009	15:05	x86	SP3	SP3QFE

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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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MORE INFORMATION

For more information about how to create a FILESTREAM-Enabled database, visit the following Microsoft web site:

http://technet.microsoft.com/en-us/library/cc645585.aspx

(http://technet.microsoft.com/en-us/library/cc645585.aspx)

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

956572

(http://support.microsoft.com/kb/956572/ )

MS09-012: Description of the security update for Windows Service Isolation: April 2009

If you experience the same problem on a computer that is running Windows Server 2003 SP2 or x64-based versions of Windows XP SP2, you can obtain the hotfix from KB973573.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

973573

(http://support.microsoft.com/kb/973573/ )

Services that are running under the Network Service account cannot access the \?? namespace after security update MS09-012 (956572) is installed

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684

(http://support.microsoft.com/kb/824684/ )

Description of the standard terminology that is used to describe Microsoft software updates

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