Symptoms

On a computer that is running Windows Server 2008 or Windows Vista, the system generates one of the following stop error codes and then restarts:

0x0000007F (UNEXPECTED_KERNEL_MODE_TRAP)

0x0000008E (KERNEL_MODE_EXCEPTION_NOT_HANDLED)

This problem typically occurs when multiple third-party network drivers are installed on the computer. For example, this problem may occur when the following drivers are installed:

  • VPN client drivers

  • Firewall drivers

  • Modem/ISDN drivers

  • Other network security filter drivers

Cause

This problem occurs because the Ndis.sys driver uses too much stack space in combination with several third-party network drivers. In this situation, a stack overflow occurs.

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 the problem described in this article. 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:

http://support.microsoft.com/contactus/?ws=supportNote 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 apply this hotfix on a computer that is running Windows Vista, you must have Windows Vista Service Pack 1 (SP1) or Windows Vista SP2 installed.

No prerequisites are required for Windows Server 2008-based computers.

Restart requirement

You must restart the 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 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 and Windows Server 2008 file information notes

The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are
listed separately
. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows Server 2008 RTM and of Windows Vista SP1

File name

File version

File size

Date

Time

Platform

SP requirement

Ndis.sys

6.0.6001.22435

526,424

18-May-2009

22:27

x86

SP1

Ndismigplugin.dll

6.0.6001.22435

129,024

18-May-2009

13:51

x86

SP1

Ndistrace.mof

Not Applicable

4,548

01-Apr-2009

19:00

Not Applicable

SP1

For all supported x86-based versions of Windows Server 2008 SP2 and of Windows Vista SP2

File name

File version

File size

Date

Time

Platform

SP requirement

Ndis.sys

6.0.6002.22138

526,408

18-May-2009

22:12

x86

SP2

Ndismigplugin.dll

6.0.6002.22138

129,024

18-May-2009

11:48

x86

SP2

Ndistrace.mof

Not Applicable

4,548

03-Apr-2009

21:01

Not Applicable

SP2

For all supported x64-based versions of Windows Server 2008 RTM and of Windows Vista SP1

File name

File version

File size

Date

Time

Platform

SP requirement

Ndis.sys

6.0.6001.22435

733,256

19-May-2009

01:27

x64

SP1

Ndismigplugin.dll

6.0.6001.22435

137,216

18-May-2009

14:06

x64

SP1

Ndistrace.mof

Not Applicable

4,548

01-Apr-2009

16:10

Not Applicable

SP1

For all supported x64-based versions of Windows Server 2008 SP2 and of Windows Vista SP2

File name

File version

File size

Date

Time

Platform

SP requirement

Ndis.sys

6.0.6002.22138

736,824

19-May-2009

01:08

x64

SP2

Ndismigplugin.dll

6.0.6002.22138

137,216

18-May-2009

13:46

x64

SP2

Ndistrace.mof

Not Applicable

4,548

03-Apr-2009

20:48

Not Applicable

SP2

For all supported IA-64-based versions of Windows Server 2008 RTM

File name

File version

File size

Date

Time

Platform

SP requirement

Ndis.sys

6.0.6001.22435

1,644,104

19-May-2009

01:10

IA-64

SP1

Ndismigplugin.dll

6.0.6001.22435

314,368

18-May-2009

13:41

IA-64

SP1

Ndistrace.mof

Not Applicable

4,548

01-Apr-2009

16:10

Not Applicable

SP1

For all supported IA-64-based versions of Windows Server 2008 SP2

File name

File version

File size

Date

Time

Platform

SP requirement

Ndis.sys

6.0.6002.22138

1,644,104

19-May-2009

00:42

IA-64

SP2

Ndismigplugin.dll

6.0.6002.22138

314,368

18-May-2009

13:37

IA-64

SP2

Ndistrace.mof

Not Applicable

4,548

03-Apr-2009

20:48

Not Applicable

SP2

Workaround

To work around this problem, uninstall the third-party networking drivers.

Status

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

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