Microsoft KB Archive/924692

= A USB 2.0 device stops working correctly when the device uses lots of bandwidth in Windows XP =

Article ID: 924692

Article Last Modified on 8/29/2007

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APPLIES TO


 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition

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SYMPTOMS
On a Microsoft Windows XP-based computer, you use a high-bandwidth USB 2.0 device, such as an isochronous video camera. However, after you repeatedly start and stop the USB device, it stops working correctly. This problem is more likely to occur on a system that has 256 megabytes (MB) of RAM or less. However, when the system is under heavy stress, this problem may also occur on a system that has more than 256 MB of RAM.

When this problem occurs, you may receive an error message that resembles the following:

Creation of the video preview failed.

After this problem occurs, the USB device may be marked with a yellow exclamation point in Device Manager. Additionally, other USB 2.0 devices may not enumerate correctly, may not work correctly, or both.



CAUSE
This problem is caused by a bandwidth leak in the USB 2.0 bus.



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

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.



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
For more information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

816915 New file naming schema for Microsoft Windows software update packages

For more information, 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

Keywords: kbfix kbbug kbwinxpsp3fix kbwinxppresp3fix kbhotfixserver kbqfe kbexpertisebeginner KB924692

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