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Symptoms

Consider the following scenario:

  • You run a Windows Filtering Platform (WFP)-based network filtering application on a computer that is running Windows Vista or Windows Server 2008.

  • A WPF callout driver is used to pend packet processing by calling the FwpsPendOperation0() API.

  • This call returns a completion context.

In this scenario, the Remote Address field in the completion context is zeroed out. Additionally, the computer may crash, depending on how the callout driver handles the Remote Address field.

Note This issue may occur if a reauthentication request is triggered by calling the FwpsCompleteOperation0() API.

Cause

This issue occurs because of an error in the Tcpip.sys file.

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, you must be running Windows Vista Service Pack 2 (SP2) or Windows Server 2008 Service Pack 2 (SP2).

For more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:

935791 How to obtain the latest Windows Vista service pack

For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

968849 How to obtain the latest service pack for Windows Server 2008

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Vista and Windows Server 2008 file information notes

Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.0.600
    2.
    22xxx

    Windows Vista and Windows Server 2008

    SP2

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 and for Windows Vista" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

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

File name

File version

File size

Date

Time

Platform

Tcpipreg.sys

6.0.6002.22736

31,232

01-Nov-2011

15:02

x86

Tcpip.sys

6.0.6002.22736

913,280

01-Nov-2011

19:43

x86

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

File name

File version

File size

Date

Time

Platform

Tcpipreg.sys

6.0.6002.22736

40,448

01-Nov-2011

14:21

x64

Tcpip.sys

6.0.6002.22736

1,423,232

01-Nov-2011

19:39

x64

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

File name

File version

File size

Date

Time

Platform

Tcpipreg.sys

6.0.6002.22736

80,896

01-Nov-2011

14:26

IA-64

Tcpip.sys

6.0.6002.22736

2,968,448

01-Nov-2011

19:34

IA-64

Status

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

More Information

For more information about software update terminology, 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 file information

Additional file information for Windows Vista and for Windows Server 2008

Additional files for all supported x86-based versions of Windows Vista and of Windows Server 2008

File name

X86_b2ee9b504eea343dc461ecaf40a1f6e1_31bf3856ad364e35_6.0.6002.22736_none_8b529b94efe876ed.manifest

File version

Not Applicable

File size

717

Date (UTC)

01-Nov-2011

Time (UTC)

19:50

File name

X86_ec98e552b312707651f66ec19a41aa38_31bf3856ad364e35_6.0.6002.22736_none_6e07fde8149314fc.manifest

File version

Not Applicable

File size

702

Date (UTC)

01-Nov-2011

Time (UTC)

19:50

File name

X86_microsoft-windows-l..istry-support-tcpip_31bf3856ad364e35_6.0.6002.22736_none_8872e7c81bc3c1b6.manifest

File version

Not Applicable

File size

4,845

Date (UTC)

01-Nov-2011

Time (UTC)

17:40

File name

X86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.0.6002.22736_none_b573c4137cbd0820.manifest

File version

Not Applicable

File size

6,762

Date (UTC)

01-Nov-2011

Time (UTC)

19:51

Additional files for all supported x64-based versions of Windows Vista and of Windows Server 2008

File name

Amd64_68850aff5446646e9f64b6710eb72668_31bf3856ad364e35_6.0.6002.22736_none_490146d673ec0a60.manifest

File version

Not Applicable

File size

706

Date (UTC)

01-Nov-2011

Time (UTC)

19:50

File name

Amd64_b3627c05e787b6b16271a21877e8285f_31bf3856ad364e35_6.0.6002.22736_none_d13027978d049da7.manifest

File version

Not Applicable

File size

721

Date (UTC)

01-Nov-2011

Time (UTC)

19:50

File name

Amd64_microsoft-windows-l..istry-support-tcpip_31bf3856ad364e35_6.0.6002.22736_none_e491834bd42132ec.manifest

File version

Not Applicable

File size

5,122

Date (UTC)

01-Nov-2011

Time (UTC)

16:16

File name

Amd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.0.6002.22736_none_11925f97351a7956.manifest

File version

Not Applicable

File size

6,784

Date (UTC)

01-Nov-2011

Time (UTC)

19:51

Additional files for all supported IA-64-based versions of Windows Server 2008

File name

Ia64_89f70a689583400d9d17984f20a41789_31bf3856ad364e35_6.0.6002.22736_none_7d88446d97e1ff91.manifest

File version

Not Applicable

File size

1,066

Date (UTC)

01-Nov-2011

Time (UTC)

19:50

File name

Ia64_microsoft-windows-l..istry-support-tcpip_31bf3856ad364e35_6.0.6002.22736_none_88748bbe1bc1cab2.manifest

File version

Not Applicable

File size

5,118

Date (UTC)

01-Nov-2011

Time (UTC)

15:58

File name

Ia64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.0.6002.22736_none_b57568097cbb111c.manifest

File version

Not Applicable

File size

6,773

Date (UTC)

01-Nov-2011

Time (UTC)

19:51

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