Windows Server 2003 Does Not Identify a Dell PV122T VS80 Medium Changer

A Windows Server 2003-based computer does not identify a Dell PV122T VS80 medium changer device. The device stops working after this problem occurs. The PV-122T VS80 appears as Benchmark VS640 DLT Autoloader in Device Manager. If you upgrade your firmware from V50 to V57 on the PV-122T VS80, you may experience this problem.

This issue is caused by a code problem in the Microsoft-provided Powerfil.sys driver. When a MoveMedium command is issued, Windows first determines if the transport, source, and destination element are out of range. A transport address is considered to be out of range if no transports are being reported. The driver does not identify the device if no transports are being reported.

This hotfix was included with Windows Server 2003 Service Pack 1 (SP1). See the following Microsoft Knowledge base article for steps to download the latest service pack for Windows Server 2003:

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 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 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: 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

No prerequisites are required.

Restart Requirement

You must restart your computer after you apply this hotfix.

Hotfix Replacement Information

This hotfix does not replace any other hotfixes.

File Information

The English version of this fix has the file attributes (or later) 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.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

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