Event ID 256 is logged in the system event log after you install the MS04-011 security update on a Windows 2000-based computer

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SYMPTOMS

You install the MS04-011 security update on a Microsoft Windows 2000-based computer. After you restart the computer, you may experience a delay before you can successfully log on to the computer. You may also experience a delay while the desktop is opening. When the desktop successfully opens, the following message is logged multiple times in the system event log:

Event Source: PlugPlayManager
Event ID: 256
Description:
Timed out sending notification of device interface change to window of program, service name, or GUID.

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RESOLUTION

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.

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, submit a request to 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:

http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)

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

To install this hotfix, you must have the MS04-011 security update installed on your computer.

Restart requirement

You must restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix replaces the hotfix that is included in the following Microsoft Knowledge Base article:

835732 (http://support.microsoft.com/kb/835732/ ) MS04-011: Security Update for Microsoft Windows

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
   --------------------------------------------------------------
   10-Feb-2004  19:47  5.0.2195.6897      30,160  Mountmgr.sys
   21-May-2004  22:14  5.0.2195.6932   1,701,248  Ntkrnlmp.exe     
   21-May-2004  22:14  5.0.2195.6932   1,700,992  Ntkrnlpa.exe     
   21-May-2004  22:14  5.0.2195.6932   1,722,560  Ntkrpamp.exe     
   21-May-2004  22:14  5.0.2195.6932   1,678,080  Ntoskrnl.exe

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