Not sure if this is the right fix? We've added this issue to our memory dump diagnostic which can confirm.

Symptoms

Assume that you have Microsoft Narrator enabled on a Windows 7-based or Windows Server 2008 R2-based computer that has Windows Search disabled. However, when you try to access the Start menu or open Windows Explorer, Narrator crashes.

Cause

This issue occurs because a null reference exception is unhandled. Narrator calls a handler when Narrator processes items in an internal queue. The handler tries to call the Stop method on a timer reference. However, the timer object is created only when Windows Search is enabled on the computer. Therefore, the timer reference points to a null object, and then Narrator throws an exception.

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 website:

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 7 Service Pack 1 (SP1) or Windows Server 2008 R2 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:

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

Registry information

To apply this hotfix, 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, 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

    Milestone

    Service branch

    6.1.760
    1.22xxx

    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 extremely important 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

Narrator.exe

6.1.7601.22116

1,077,248

21-Sep-2012

17:03

Narrator.exe

6.1.7601.22116

1,077,248

21-Sep-2012

17:03

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


File name

File version

File size

Date

Time

Narrator.exe

6.1.7601.22116

1,077,248

21-Sep-2012

18:41

Narrator.exe

6.1.7601.22116

1,077,248

21-Sep-2012

17:03

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


File name

File version

File size

Date

Time

Narrator.exe

6.1.7601.22116

1,077,248

21-Sep-2012

17:01

Narrator.exe

6.1.7601.22116

1,077,248

21-Sep-2012

17:03


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 how to turn on and use Narrator, go to the following Microsoft website:

How to turn on and use NarratorFor more information about Windows Search, go to the following Microsoft website:

General information about Windows SearchFor more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684Description 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

Msil_narrator_31bf3856ad364e35_6.1.7601.22116_none_e21b1c73c34ad4c8.manifest

File version

Not applicable

File size

1,218

Date (UTC)

21-Sep-2012

Time (UTC)

17:22

File name

X86_223ea10e58ce6975c8ed5110a74f7089_31bf3856ad364e35_6.1.7601.22116_none_157536536eac329c.manifest

File version

Not applicable

File size

686

Date (UTC)

21-Sep-2012

Time (UTC)

21:29

File name

X86_4f8d0d8202b4c58f1f036d92c3a12d3f_31bf3856ad364e35_6.1.7601.22116_none_8edc7b6947afd83c.manifest

File version

Not applicable

File size

679

Date (UTC)

21-Sep-2012

Time (UTC)

21:29

File name

X86_narrator-nonmsil_31bf3856ad364e35_6.1.7601.22116_none_2fd0a7763c468708.manifest

File version

Not applicable

File size

6,073

Date (UTC)

21-Sep-2012

Time (UTC)

17:20

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


File name

Amd64_4f8d0d8202b4c58f1f036d92c3a12d3f_31bf3856ad364e35_6.1.7601.22116_none_eafb16ed000d4972.manifest

File version

Not applicable

File size

681

Date (UTC)

21-Sep-2012

Time (UTC)

21:29

File name

Amd64_5dea440b97c9d63bc697124015b7be53_31bf3856ad364e35_6.1.7601.22116_none_85e3a0509f21abaa.manifest

File version

Not applicable

File size

690

Date (UTC)

21-Sep-2012

Time (UTC)

21:29

File name

Amd64_narrator-nonmsil_31bf3856ad364e35_6.1.7601.22116_none_8bef42f9f4a3f83e.manifest

File version

Not applicable

File size

6,077

Date (UTC)

21-Sep-2012

Time (UTC)

19:02

File name

Msil_narrator_31bf3856ad364e35_6.1.7601.22116_none_e21b1c73c34ad4c8.manifest

File version

Not applicable

File size

1,218

Date (UTC)

21-Sep-2012

Time (UTC)

17:22

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


File name

Ia64_4f8d0d8202b4c58f1f036d92c3a12d3f_31bf3856ad364e35_6.1.7601.22116_none_8ede1f5f47ade138.manifest

File version

Not applicable

File size

680

Date (UTC)

21-Sep-2012

Time (UTC)

21:29

File name

Ia64_6e3abe8c386b4711408fef26a8cb8649_31bf3856ad364e35_6.1.7601.22116_none_c5fc8804f16a8d83.manifest

File version

Not applicable

File size

688

Date (UTC)

21-Sep-2012

Time (UTC)

21:29

File name

Ia64_narrator-nonmsil_31bf3856ad364e35_6.1.7601.22116_none_2fd24b6c3c449004.manifest

File version

Not applicable

File size

6,075

Date (UTC)

21-Sep-2012

Time (UTC)

18:11

File name

Msil_narrator_31bf3856ad364e35_6.1.7601.22116_none_e21b1c73c34ad4c8.manifest

File version

Not applicable

File size

1,218

Date (UTC)

21-Sep-2012

Time (UTC)

17:22

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