Microsoft KB Archive/943632

= The volume label of the storage media is not updated and the AutoPlay dialog box is not displayed after you insert the storage media into a removable drive on a Windows Vista-based computer =

Article ID: 943632

Article Last Modified on 11/7/2007

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APPLIES TO


 * Windows Vista Business
 * Windows Vista Enterprise
 * Windows Vista Home Basic
 * Windows Vista Home Premium
 * Windows Vista Starter
 * Windows Vista Ultimate
 * Windows Vista Business 64-bit Edition
 * Windows Vista Enterprise 64-bit Edition
 * Windows Vista Home Basic 64-bit Edition
 * Windows Vista Home Premium 64-bit Edition
 * Windows Vista Ultimate 64-bit Edition

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SYMPTOMS
You insert storage media into a removable drive on a Windows Vista-based computer. However, the volume label of the storage media is not updated. Additionally, the AutoPlay dialog box is not displayed.

Note This problem occurs intermittently.



CAUSE
This problem occurs because of a race condition in the Shsvcs.dll file. When this problem occurs, the GUID_IO_MEDIA_ARRIVAL device event happens too early. Therefore, the GetVolumeInformation function cannot be correctly returned.



Hotfix information
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
There are no prerequisites for installing this hotfix.

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 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 Vista, 64-bit versions


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
After you install the hotfix, the volume label will be updated after the GUID_IO_VOLUME_MOUNT device event is triggered.

For more information about the GUID_IO_VOLUME_MOUNT and GUID_IO_MEDIA_ARRIVAL device events, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/aa363217.aspx

For more information about the GetVolumeInformation function, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/aa364993.aspx

Keywords: kbqfe kbexpertisebeginner kbhotfixserver KB943632

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