Microsoft KB Archive/933657

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Article ID: 933657

Article Last Modified on 8/29/2007


  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise
  • Windows Vista Ultimate
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Business


On a computer that is running Windows Vista, you intermittently lose access to network resources if more than one Network Device Interface Specification (NDIS) filter driver is installed.


Hotfix information

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:

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:


There are no prerequisites.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

Registry information

You do not have to make any changes to the registry.

File information

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 item in Control Panel.

Windows Vista, 32-bit versions
File name File version File size Date Time Platform
Ndis.sys 6.0.6000.20548 503,480 02-Mar-2007 03:15 x86
Ndismigplugin.dll 6.0.6000.20548 127,488 02-Mar-2007 03:06 x86
Ndistrace.mof Not Applicable 4,548 07-Jan-2007 05:30 Not Applicable
Windows Vista, 64-bit versions
File name File version File size Date Time Platform
Ndis.sys 6.0.6000.20548 643,768 02-Mar-2007 04:20 x64
Ndismigplugin.dll 6.0.6000.20548 135,680 02-Mar-2007 04:12 x64
Ndistrace.mof Not Applicable 4,548 07-Jan-2007 05:31 Not Applicable


To work around this problem, disable the network adapter. Then, re-enable the network adapter.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


For more information about the terms that are used to describe software updates, 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

Keywords: kbfix kbqfe kbpubtypekc kbexpertisebeginner kbhotfixserver KB933657