Symptoms

Consider the following scenario. You use Windows Media Player 12 on a computer that is running Windows 7 to play some AVI files that were created by a third-party application or by third-party hardware. The AVI files include an AVI super index chunk. In this scenario, Windows Media Player 12 does not play the files correctly. Additionally, you receive an error message that resembles the following:

An internal error has occurred.

Cause

This issue occurs because Microsoft Media Foundation does not parse an index chunk in the AVI files correctly.

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 or Windows 7 Service Pack 1 (SP1).For more information about how to obtain a Windows 7 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 file information note

Important Windows 7 and Windows Server 2008 R2 updates are included in the same packages.

  • 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

    SR_Level

    Service branch

    6.1.760 0. 16xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    GDR

    6.1.760 0. 21xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    LDR

    6.1.760 1. 17xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    GDR

    6.1.760 1. 21xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) that are installed for each environment are listed separately in the "Additional file information for Windows 7" section. 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

Mf.dll

12.0.7600.21117

3,182,080

30-Dec-2011

05:31

Mferror.dll

12.0.7600.21117

2,048

30-Dec-2011

05:21

Mfpmp.exe

12.0.7600.21117

23,040

30-Dec-2011

05:28

Mfps.dll

12.0.7600.21117

103,424

30-Dec-2011

05:31

Rrinstaller.exe

11.0.7600.21117

50,176

30-Dec-2011

05:29

Mf.dll

12.0.7601.21888

3,208,192

30-Dec-2011

05:26

Mferror.dll

12.0.7600.16385

2,048

14-Jul-2009

01:06

Mfpmp.exe

12.0.7600.16385

23,040

14-Jul-2009

01:14

Mfps.dll

12.0.7601.21888

103,424

30-Dec-2011

05:26

Rrinstaller.exe

11.0.7600.16385

50,176

14-Jul-2009

01:14

For all supported x64-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Mf.dll

12.0.7600.21117

4,068,864

30-Dec-2011

06:38

x64

Mferror.dll

12.0.7600.21117

2,048

30-Dec-2011

06:26

x64

Mfpmp.exe

12.0.7600.21117

24,576

30-Dec-2011

06:34

x64

Mfps.dll

12.0.7600.21117

206,848

30-Dec-2011

06:38

x64

Rrinstaller.exe

11.0.7600.21117

55,808

30-Dec-2011

06:34

x64

Mf.dll

12.0.7601.21888

4,120,064

30-Dec-2011

06:32

x64

Mferror.dll

12.0.7600.16385

2,048

14-Jul-2009

01:28

x64

Mfpmp.exe

12.0.7600.16385

24,576

14-Jul-2009

01:39

x64

Mfps.dll

12.0.7601.21888

206,848

30-Dec-2011

06:32

x64

Rrinstaller.exe

11.0.7600.16385

55,808

14-Jul-2009

01:39

x64

Mf.dll

12.0.7600.21117

3,182,080

30-Dec-2011

05:31

x86

Mferror.dll

12.0.7600.21117

2,048

30-Dec-2011

05:21

x86

Mfpmp.exe

12.0.7600.21117

23,040

30-Dec-2011

05:28

x86

Mfps.dll

12.0.7600.21117

103,424

30-Dec-2011

05:31

x86

Rrinstaller.exe

11.0.7600.21117

50,176

30-Dec-2011

05:29

x86

Mf.dll

12.0.7601.21888

3,208,192

30-Dec-2011

05:26

x86

Mferror.dll

12.0.7600.16385

2,048

14-Jul-2009

01:06

x86

Mfpmp.exe

12.0.7600.16385

23,040

14-Jul-2009

01:14

x86

Mfps.dll

12.0.7601.21888

103,424

30-Dec-2011

05:26

x86

Rrinstaller.exe

11.0.7600.16385

50,176

14-Jul-2009

01:14

x86

Workaround

To work around the issue, regenerate the AVI files so that every AVI standard index chunk contains more than one entry.

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 AVIOLDINDEX structure, visit the following Microsoft MSDN website:

General information about the AVIOLDINDEX structureFor 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

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

File name

X86_4959b454d516f88f44b5c4113058d3bb_31bf3856ad364e35_6.1.7601.21888_none_4e1f321e25c489a8.manifest

File version

Not applicable

File size

703

Date (UTC)

30-Dec-2011

Time (UTC)

17:59

File name

X86_f598315cbe267704553358e9e487e97a_31bf3856ad364e35_6.1.7600.21117_none_ad27f1fc0e47f773.manifest

File version

Not applicable

File size

703

Date (UTC)

30-Dec-2011

Time (UTC)

17:59

File name

X86_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7600.21117_none_9d0cb5b886f87101.manifest

File version

Not applicable

File size

252,233

Date (UTC)

30-Dec-2011

Time (UTC)

05:59

File name

X86_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7601.21888_none_9ea88b7284568699.manifest

File version

Not applicable

File size

265,911

Date (UTC)

30-Dec-2011

Time (UTC)

18:03

Additional files for all supported x64-based versions of Windows 7

File name

Amd64_38b3a76b5aa438c08da776d04748261c_31bf3856ad364e35_6.1.7601.21888_none_02fa035f1c6200c6.manifest

File version

Not applicable

File size

1,056

Date (UTC)

30-Dec-2011

Time (UTC)

17:59

File name

Amd64_39064483349549a58af8d12accade4a0_31bf3856ad364e35_6.1.7600.21117_none_626ee23425241966.manifest

File version

Not applicable

File size

1,056

Date (UTC)

30-Dec-2011

Time (UTC)

17:59

File name

Amd64_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7600.21117_none_f92b513c3f55e237.manifest

File version

Not applicable

File size

252,237

Date (UTC)

30-Dec-2011

Time (UTC)

07:10

File name

Amd64_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7601.21888_none_fac726f63cb3f7cf.manifest

File version

Not applicable

File size

265,915

Date (UTC)

30-Dec-2011

Time (UTC)

17:59

File name

Wow64_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7600.21117_none_037ffb8e73b6a432.manifest

File version

Not applicable

File size

151,805

Date (UTC)

30-Dec-2011

Time (UTC)

05:49

File name

Wow64_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7601.21888_none_051bd1487114b9ca.manifest

File version

Not applicable

File size

162,389

Date (UTC)

30-Dec-2011

Time (UTC)

17:59

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