Microsoft KB Archive/820945

= A USB mouse that is connected to a USB 2.0 EHCI host controller does not respond after you restart a Windows 2000-based computer =

Article ID: 820945

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Advanced Server

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SYMPTOMS
A USB mouse device connected to an USB 2.0 Enhanced Host Controller Interface (EHCI) host controller does not respond after a Windows 2000-based computer restarts.



CAUSE
This problem occurs because the USBport.sys driver incorrectly identifies the USB EHCI host controller as a Standard Enhanced PCI to USB host controller and Windows 2000 cannot detect the USB mouse.



Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, 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.

Prerequisites
To apply this hotfix, you must have Windows 2000 Service Pack 3 (SP3) or Service Pack 4 (SP4) installed.

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 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.    Date         Time   Version        Size       File name --  21-Sep-2003  00:36  5.0.2195.6824     29,712  Mountmgr.sys 02-Oct-2003 23:25  5.0.2195.6862  1,698,496  Ntkrnlmp.exe 02-Oct-2003 23:26  5.0.2195.6862  1,697,856  Ntkrnlpa.exe 02-Oct-2003 23:26  5.0.2195.6862  1,718,592  Ntkrpamp.exe 02-Oct-2003 23:25  5.0.2195.6862  1,676,160  Ntoskrnl.exe



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



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

816915 New naming schema for Microsoft Windows software update packages

824684 Description of the standard terminology that is used to describe Microsoft software updates

822568 USB device is not recognized after computer starts up

Keywords: kbbug kbfix kbqfe kbwin2000presp5fix KB820945

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