Microsoft KB Archive/840661

= A Windows XP SCSI-based miniport driver does not correctly send WMI SCSI request blocks to the storage device and to the storage adapter =

Article ID: 840661

Article Last Modified on 6/1/2006

-

APPLIES TO


 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional for Itanium-based systems

-





SYMPTOMS
After you install a small computer system interface-based (SCSI-based) miniport driver on a Microsoft Windows XP-based computer, the SCSI-based miniport driver may experience problems. These problems affect SCSI-based miniport drivers that support Windows Management Instrumentation (WMI). These problems occur when the Windows XP-based computer processes a WMI I/O request packet (IRP). The problems include the following:
 * When a WMI request is intended for the storage adapter, the SCSI service request block (SCSI_WMI_REQUEST_BLOCK) that is sent to the SCSI-based miniport driver indicates that the request is intended for the storage device instead of the storage adapter.
 * When a WMI request is intended for the storage device, the request is not sent to the SCSI-based miniport driver.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix.

To resolve this problem immediately, 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. The English version of this hotfix 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.

Windows XP, 32-bit editions
Date        Time   Version            Size    File name --  13-May-2004  16:35  5.1.2600.1529      90,752  Scsiport.sys

Windows XP 64-Bit Edition
Date        Time   Version            Size    File name --  13-May-2004  16:36  5.1.2600.1529     305,664  Scsiport.sys



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 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

Additional query words: Physical Device Object

Keywords: kbbug kbfix kbqfe kbwinxppresp2fix kbhotfixserver KB840661

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.