GDI objects are not displayed correctly on multiple monitors in Windows 7 or in Windows Server 2008 R2

Symptoms

Consider the following scenario:

  • You connect multiple monitors to a computer that is running Windows 7 or Windows Server 2008 R2.

  • A user remotely connects to the computer by using a remote application that uses a mirror driver (for example, Remote Assistance).

  • You run an application that uses the EnumDisplayMonitors function to display some Graphics Device Interface (GDI) objects.

In this scenario, the GDI objects are not displayed correctly.

Cause

This issue occurs because the EnumDisplayMonitors function may provide a corrupted hdc parameter if a mirror driver is loaded.

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 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 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 7 and Windows Server 2008 R2 file information notes


Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" 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, 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 7 and for Windows Server 2008 R2" section. 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, 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

Win32k.sys

6.1.7600.21055

2,341,376

16-Sep-2011

02:30

x86

Win32k.sys

6.1.7601.21820

2,342,400

16-Sep-2011

03:47

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

Win32k.sys

6.1.7600.21055

3,138,560

16-Sep-2011

03:00

x64

Win32k.sys

6.1.7601.21820

3,140,608

16-Sep-2011

03:54

x64

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

File name

File version

File size

Date

Time

Platform

Win32k.sys

6.1.7600.21055

7,426,048

16-Sep-2011

02:16

IA-64

Win32k.sys

6.1.7601.21820

7,425,024

16-Sep-2011

02:19

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 the EnumDisplayMonitors function, visit the following Microsoft website:

General information about the EnumDisplayMonitors functionFor more information about mirror drivers, visit the following Microsoft website:

General information about mirror driversFor 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 7 and for Windows Server 2008 R2

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

File name

Update.mum

File version

Not applicable

File size

2,773

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

X86_cc1ff155950f82187cfdc79af2cbafc0_31bf3856ad364e35_6.1.7601.21820_none_2b041b30da1d5d89.manifest

File version

Not applicable

File size

694

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

X86_da1d0164402d9d3ca0a99c6d8576f58e_31bf3856ad364e35_6.1.7600.21055_none_ed4db3d1f8dcb29d.manifest

File version

Not applicable

File size

694

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

X86_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21055_none_b973be0d14dfd02d.manifest

File version

Not applicable

File size

42,086

Date (UTC)

16-Sep-2011

Time (UTC)

07:27

Platform

Not applicable

File name

X86_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21820_none_bb75b32911f23378.manifest

File version

Not applicable

File size

42,086

Date (UTC)

16-Sep-2011

Time (UTC)

06:46

Platform

Not applicable

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

File name

Amd64_584aa27ea2eb478c89963c27f550b305_31bf3856ad364e35_6.1.7600.21055_none_40ab527d8a3ebd60.manifest

File version

Not applicable

File size

1,038

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

Amd64_7ddb7838e72bae276c36c67d8f052008_31bf3856ad364e35_6.1.7601.21820_none_f476ac7d34c0c4de.manifest

File version

Not applicable

File size

1,038

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

Amd64_8653fa1228117aa74ce2d5acd8b8e979_31bf3856ad364e35_6.1.7601.21820_none_5448f555090f2bae.manifest

File version

Not applicable

File size

698

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

Amd64_a1e3b95da260e3ee324e9bbe86f69c86_31bf3856ad364e35_6.1.7600.21055_none_24cfac775fa8fbc7.manifest

File version

Not applicable

File size

698

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

Amd64_f04da39a32a6a591049ef69857927999_31bf3856ad364e35_6.1.7600.21055_none_cdbe4baffce3075c.manifest

File version

Not applicable

File size

698

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

Amd64_fdb24fdc7510769223722ba558fb4136_31bf3856ad364e35_6.1.7601.21820_none_2b6139692902bf60.manifest

File version

Not applicable

File size

698

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21055_none_15925990cd3d4163.manifest

File version

Not applicable

File size

42,090

Date (UTC)

16-Sep-2011

Time (UTC)

07:58

Platform

Not applicable

File name

Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21820_none_17944eacca4fa4ae.manifest

File version

Not applicable

File size

42,090

Date (UTC)

16-Sep-2011

Time (UTC)

07:31

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

4,059

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21055_none_1fe703e3019e035e.manifest

File version

Not applicable

File size

4,178

Date (UTC)

16-Sep-2011

Time (UTC)

07:06

Platform

Not applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21820_none_21e8f8fefeb066a9.manifest

File version

Not applicable

File size

4,178

Date (UTC)

16-Sep-2011

Time (UTC)

06:35

Platform

Not applicable

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

File name

Ia64_628bd24ed84777fd360054de150ba021_31bf3856ad364e35_6.1.7600.21055_none_e20d5bfe650e7e31.manifest

File version

Not applicable

File size

696

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

Ia64_8653fa1228117aa74ce2d5acd8b8e979_31bf3856ad364e35_6.1.7601.21820_none_f82bfdc750afc374.manifest

File version

Not applicable

File size

697

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

Ia64_95824a34a7c2af994416d8fc539c5451_31bf3856ad364e35_6.1.7601.21820_none_2587e52f69518f2e.manifest

File version

Not applicable

File size

696

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

Ia64_a1e3b95da260e3ee324e9bbe86f69c86_31bf3856ad364e35_6.1.7600.21055_none_c8b2b4e9a749938d.manifest

File version

Not applicable

File size

697

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

Ia64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21055_none_b975620314ddd929.manifest

File version

Not applicable

File size

42,088

Date (UTC)

16-Sep-2011

Time (UTC)

07:56

Platform

Not applicable

File name

Ia64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21820_none_bb77571f11f03c74.manifest

File version

Not applicable

File size

42,088

Date (UTC)

16-Sep-2011

Time (UTC)

07:28

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,169

Date (UTC)

16-Sep-2011

Time (UTC)

12:42

Platform

Not applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7600.21055_none_1fe703e3019e035e.manifest

File version

Not applicable

File size

4,178

Date (UTC)

16-Sep-2011

Time (UTC)

07:06

Platform

Not applicable

File name

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.1.7601.21820_none_21e8f8fefeb066a9.manifest

File version

Not applicable

File size

4,178

Date (UTC)

16-Sep-2011

Time (UTC)

06:35

Platform

Not applicable

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