Microsoft KB Archive/893541

= An application stops responding when the Single Instance Store (SIS) Filter driver is installed and the application calls the FSCTL_DISMOUNT_VOLUME control code to dismount a volume in Windows Server 2003 or in Windows 2000 Server =

Article ID: 893541

Article Last Modified on 7/24/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server

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SYMPTOMS
An application may stop responding if the following conditions are true:
 * The Single Instance Store (SIS) Filter driver is installed on the computer.
 * The application calls the FSCTL_DISMOUNT_VOLUME control code to dismount a volume.



CAUSE
The issue occurs because of a bug in the Sis.sys filter driver. When this issue occurs, the filter is waiting for an event that is never signaled.



Hotfix Information for Windows Server 2003
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
This hotfix requires Microsoft Windows Server 2003 to be installed on the computer.

Restart requirement
You have to 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.

Hotfix Information for Windows 2000 Server
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
This hotfix requires Microsoft Windows 2000 Server Service Pack 3 to be installed on the computer.

Restart requirement
You have to 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 2000 with Service Pack 3


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
The Single Instance Storage Filter is a file system filter that manages the duplicate copies of files on hard-disk volumes. This filter copies one instance of the duplicate file into a central folder. The duplicates are replaced with a link to the central copy to improve disk usage. This Single Instance Storage Filter service cannot be stopped. If this service is disabled, the linked files cannot be accessed. If the central folder is deleted, the linked files can become permanently inaccessible.

The Single Instance Store (SIS) service is used by Remote Installation Server (RIS) to reduce disk space by combining duplicate files.

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

299726 A Description of the Functions of the Single Instance Storage Filter and the Groveler Service

For more information about the FSCTL_DISMOUNT_VOLUME control code, visit the following Web site:http://msdn2.microsoft.com/en-gb/library/aa364562.aspx

Keywords: kbexpertiseinter kbqfe kbhotfixserver KB893541

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