Microsoft KB Archive/891570

= The PowerFile Changer device does not work when you connect it to your Windows XP SP2-based computer =

Article ID: 891570

Article Last Modified on 8/29/2007

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional

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SYMPTOMS
When you connect a PowerFile C200-series device to your Microsoft Windows XP Service Pack 2 (SP2)-based computer, the device does not work. When you open Device Manager, the device appears to be correctly installed on your computer.



CAUSE
This problem is caused by a bus reset on the Institute of Electrical and Electronics Engineering (IEEE) 1394 bus. Every time that a device is connected or removed, the whole bus is reinitialized. Then, the devices are re-enumerated on the bus. Certain IEEE 1394 devices may not be correctly detected when this behavior occurs.



RESOLUTION
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

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 tool in Control Panel.   Date         Time   Version            Size    File name ---  12-Jan-2005  03:09  5.1.2600.2594      43,264  Sbp2port.sys



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



WORKAROUND
To temporarily work around this problem, follow these steps:  Click Start, click Run, type devmgmt.msc in the Open box, and then click OK. Expand Medium Changers. Right-click your PowerFile device, and then click Update Driver. Click Install the software automatically (Recommended), and then click Next. You receive a message that is similar to the following:

Cannot Continue the Hardware Update Wizard

The wizard could not find a better match for your hardware than the software you currently have installed.

Choose what you want to do.

To keep the current software, click Finish.

To search again in another location, click Back.

 Click Finish.</li></ol>

Note This workaround resolves the problem only for the current session. The same problem will occur again after you restart the computer.

To permanently resolve this problem, install the hotfix that is described in the &quot;Resolution&quot; section.

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MORE INFORMATION
For additional 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

For additional information about troubleshooting IEEE 1394 devices and host controllers in Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:

314873 General troubleshooting for IEEE 1394 devices and host controllers

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Additional query words: firewire

Keywords: kbwinxpsp3fix kbwinxppresp3fix kbqfe kbhotfixserver KB891570

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