Symptoms

Consider the following scenario:

  • You have a Windows 7 Service Pack 1 (SP1)-based or Windows Server 2008 R2 SP1-based computer that has Media Foundation Topology Editor installed.

  • You open the TopoEdit console by typing topoedit.exe in the Search programs and files box and then pressing Enter.

  • You try to open a certain .wmv file by clicking Add Source... on the Topology menu.

In this scenario, you receive an error message that resembles the following:

Failed to create source node - The byte stream type of the given URL is unsupported

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 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.

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

Platform

Mf.dll

12.0.7601.22524

3,207,680

26-Nov-2013

02:02

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

12.0.7601.22524

103,424

26-Nov-2013

02:02

x86

Rrinstaller.exe

11.0.7600.16385

50,176

14-Jul-2009

01:14

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

Mf.dll

12.0.7601.22524

4,120,064

26-Nov-2013

02:34

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

12.0.7601.22524

206,848

26-Nov-2013

02:34

x64

Rrinstaller.exe

11.0.7600.16385

55,808

14-Jul-2009

01:39

x64

Mf.dll

12.0.7601.22524

3,207,680

26-Nov-2013

02:02

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

12.0.7601.22524

103,424

26-Nov-2013

02:02

x86

Rrinstaller.exe

11.0.7600.16385

50,176

14-Jul-2009

01:14

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:

824684Description of the standard terminology that is used to describe Microsoft software updates

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

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

File property

Value

File name

X86_39c34e6acdedb67667d5e21488ec4f94_31bf3856ad364e35_6.1.7601.22524_none_222f639224ee1cf9.manifest

File version

Not applicable

File size

703

Date (UTC)

26-Nov-2013

Time (UTC)

06:46

File name

X86_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7601.22524_none_9ee54d5884299bc3.manifest

File version

Not applicable

File size

265,911

Date (UTC)

26-Nov-2013

Time (UTC)

06:50

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

File property

Value

File name

Amd64_a8fe16b4bd03303c48b940aad550fc43_31bf3856ad364e35_6.1.7601.22524_none_63a487ac3bb20b7b.manifest

File version

Not applicable

File size

1,056

Date (UTC)

26-Nov-2013

Time (UTC)

06:46

File name

Amd64_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7601.22524_none_fb03e8dc3c870cf9.manifest

File version

Not applicable

File size

265,915

Date (UTC)

26-Nov-2013

Time (UTC)

06:46

File name

Wow64_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7601.22524_none_0558932e70e7cef4.manifest

File version

Not applicable

File size

162,389

Date (UTC)

26-Nov-2013

Time (UTC)

06:46


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