Applies ToWindows 7 Enterprise Windows 7 Professional Windows 7 Ultimate Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 for Itanium-Based Systems Windows Server 2008 R2 Foundation Windows Server 2008 R2 Standard Windows Server 2008 R2 Web Edition

Symptoms

Consider the following scenario:

  • You try to log off a computer that is running Windows 7 or Windows Server 2008 R2 without saving changes to an item.

  • You are prompted to save the item, and you click Cancel in the dialog box.

  • You are prompted to close some programs before you can log off the computer, and you click Cancel in the dialog box.

In this scenario, an event that resembles the following is logged in the System log unexpectedly.

Note This issue also occurs if you close a Remote Desktop or a Citrix application before you log off the computer.

Cause

This issue occurs because the ExitWindowsEx function does not handle the EWX_LOGOFF flag correctly.

Resolution

After you install this hotfix, the following event is added to Windows. This event handles situations in which the logoff process is canceled.

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 one of the following operating systems:

  • Windows 7

  • Windows 7 Service Pack 1 (SP1)

  • Windows Server 2008 R2

  • Windows Server 2008 R2 Service Pack 1 (SP1)

For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To apply 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 7 and Windows Server 2008 R2 file information notes

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

    Version

    Product

    Milestone

    Service branch

    6.1.760 0.21xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    LDR

    6.1.760 1.21xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    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 R2 and for Windows 7" section. MUM 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 7

File name

File version

File size

Date

Time

Platform

User32.dll

6.1.7600.21104

811,520

06-Dec-2011

05:40

x86

User32.dll

6.1.7601.21874

811,520

07-Dec-2011

05:32

x86

For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

User32.dll

6.1.7600.21104

1,008,640

06-Dec-2011

06:33

x64

User32.dll

6.1.7601.21874

1,008,128

07-Dec-2011

06:23

x64

User32.dll

6.1.7600.21104

833,024

06-Dec-2011

05:32

x86

User32.dll

6.1.7601.21874

833,024

07-Dec-2011

05:25

x86

For all supported IA-64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

User32.dll

6.1.7600.21104

1,760,768

06-Dec-2011

05:20

IA-64

User32.dll

6.1.7601.21874

1,760,256

07-Dec-2011

05:18

IA-64

User32.dll

6.1.7600.21104

833,024

06-Dec-2011

05:32

x86

User32.dll

6.1.7601.21874

833,024

07-Dec-2011

05:25

x86

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 updatesThe third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

Additional file information

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7

File name

X86_microsoft-windows-user32_31bf3856ad364e35_6.1.7600.21104_none_cdedc1cbe78dddba.manifest

File version

Not Applicable

File size

2,731

Date (UTC)

06-Dec-2011

Time (UTC)

06:15

Platform

Not Applicable

File name

X86_microsoft-windows-user32_31bf3856ad364e35_6.1.7601.21874_none_cf88973be4ecd9fb.manifest

File version

Not Applicable

File size

2,731

Date (UTC)

07-Dec-2011

Time (UTC)

06:06

Platform

Not Applicable

Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

Amd64_microsoft-windows-user32_31bf3856ad364e35_6.1.7600.21104_none_2a0c5d4f9feb4ef0.manifest

File version

Not Applicable

File size

2,735

Date (UTC)

06-Dec-2011

Time (UTC)

08:28

Platform

Not Applicable

File name

Amd64_microsoft-windows-user32_31bf3856ad364e35_6.1.7601.21874_none_2ba732bf9d4a4b31.manifest

File version

Not Applicable

File size

2,735

Date (UTC)

07-Dec-2011

Time (UTC)

06:58

Platform

Not Applicable

File name

Wow64_microsoft-windows-user32_31bf3856ad364e35_6.1.7600.21104_none_346107a1d44c10eb.manifest

File version

Not Applicable

File size

2,743

Date (UTC)

06-Dec-2011

Time (UTC)

06:01

Platform

Not Applicable

File name

Wow64_microsoft-windows-user32_31bf3856ad364e35_6.1.7601.21874_none_35fbdd11d1ab0d2c.manifest

File version

Not Applicable

File size

2,743

Date (UTC)

07-Dec-2011

Time (UTC)

05:48

Platform

Not Applicable

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

File name

Ia64_microsoft-windows-user32_31bf3856ad364e35_6.1.7600.21104_none_cdef65c1e78be6b6.manifest

File version

Not Applicable

File size

2,733

Date (UTC)

06-Dec-2011

Time (UTC)

06:55

Platform

Not Applicable

File name

Ia64_microsoft-windows-user32_31bf3856ad364e35_6.1.7601.21874_none_cf8a3b31e4eae2f7.manifest

File version

Not Applicable

File size

2,733

Date (UTC)

07-Dec-2011

Time (UTC)

06:46

Platform

Not Applicable

File name

Wow64_microsoft-windows-user32_31bf3856ad364e35_6.1.7600.21104_none_346107a1d44c10eb.manifest

File version

Not Applicable

File size

2,743

Date (UTC)

06-Dec-2011

Time (UTC)

06:01

Platform

Not Applicable

File name

Wow64_microsoft-windows-user32_31bf3856ad364e35_6.1.7601.21874_none_35fbdd11d1ab0d2c.manifest

File version

Not Applicable

File size

2,743

Date (UTC)

07-Dec-2011

Time (UTC)

05:48

Platform

Not Applicable

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