Article ID: 2529825 - View products that this article applies to.
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Symptoms

Consider the following scenario:
  • You have a Windows 7-based computer that supports hardware Media Foundation Transform (MFT).
  • You play a video by using a video rendering application. For example, you play a video by using the Internet Explorer 9 HyperText Mark-up Language 5 (HTML5) video tag.
In this scenario, the hardware MFT that is expected to decode the video is not used. Therefore, the video is not played smoothly.

Cause

This issue occurs because the source reader does not communicate with hardware MFTs correctly in Windows 7.

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 that is 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 exist, 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=support
Note 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 with Service Pack 1 (SP1)
For more information about how to obtain a Windows 7 service pack or a 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 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 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" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are very important to maintaining 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
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Mfreadwrite.dll12.0.7600.16795196,60816-Apr-201104:42x86
Mfreadwrite.dll12.0.7600.20944196,60816-Apr-201104:41x86
Mfreadwrite.dll12.0.7601.17596196,60816-Apr-201104:27x86
Mfreadwrite.dll12.0.7601.21705196,60816-Apr-201105:54x86
For all supported x64-based versions of Windows 7
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Mfreadwrite.dll12.0.7600.16795257,02416-Apr-201105:16x64
Mfreadwrite.dll12.0.7600.20944257,02416-Apr-201105:14x64
Mfreadwrite.dll12.0.7601.17596257,02416-Apr-201105:31x64
Mfreadwrite.dll12.0.7601.21705257,02416-Apr-201105:18x64
Mfreadwrite.dll12.0.7600.16795196,60816-Apr-201104:42x86
Mfreadwrite.dll12.0.7600.20944196,60816-Apr-201104:41x86
Mfreadwrite.dll12.0.7601.17596196,60816-Apr-201104:27x86
Mfreadwrite.dll12.0.7601.21705196,60816-Apr-201105:54x86

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 updates
For more information about hardware MFTs, visit the following Microsoft Developer Network (MSDN) website:
Hardware MFTs
For more information about features and improvements in Internet Explorer 9 for developers and designers, visit the following Microsoft Developer Network (MSDN) website:
Internet Explorer 9 guide for developers

Additional file information

Additional file information for Windows 7

Additional files for all supported x86-based versions of Windows 7
Collapse this tableExpand this table
File nameX86_2e1096758b3fe10a5d2875ae8b8e9d45_31bf3856ad364e35_6.1.7600.20944_none_7ca0521df7b06ee1.manifest
File versionNot applicable
File size699
Date (UTC)18-Apr-2011
Time (UTC)14:08
PlatformNot applicable
File nameX86_4c54421291c84fdf05cf018ee8335b8d_31bf3856ad364e35_6.1.7601.21705_none_99a004036796f421.manifest
File versionNot applicable
File size699
Date (UTC)18-Apr-2011
Time (UTC)14:08
PlatformNot applicable
File nameX86_95b74ce30c24a05ceffe61e7c3862d89_31bf3856ad364e35_6.1.7601.17596_none_bdf528a29e2dabca.manifest
File versionNot applicable
File size699
Date (UTC)18-Apr-2011
Time (UTC)14:08
PlatformNot applicable
File nameX86_97c2b9061531cb62952c372000d7f8bc_31bf3856ad364e35_6.1.7600.16795_none_cd3811efd406a22f.manifest
File versionNot applicable
File size699
Date (UTC)18-Apr-2011
Time (UTC)14:08
PlatformNot applicable
File nameX86_microsoft-windows-mfreadwrite_31bf3856ad364e35_6.1.7600.16795_none_b92175d37960141c.manifest
File versionNot applicable
File size26,699
Date (UTC)16-Apr-2011
Time (UTC)05:12
PlatformNot applicable
File nameX86_microsoft-windows-mfreadwrite_31bf3856ad364e35_6.1.7600.20944_none_b9e023d692560c01.manifest
File versionNot applicable
File size26,699
Date (UTC)16-Apr-2011
Time (UTC)05:11
PlatformNot applicable
File nameX86_microsoft-windows-mfreadwrite_31bf3856ad364e35_6.1.7601.17596_none_bb08d3237685995f.manifest
File versionNot applicable
File size26,699
Date (UTC)16-Apr-2011
Time (UTC)04:52
PlatformNot applicable
File nameX86_microsoft-windows-mfreadwrite_31bf3856ad364e35_6.1.7601.21705_none_bbf2c0d68f5b2180.manifest
File versionNot applicable
File size26,699
Date (UTC)16-Apr-2011
Time (UTC)06:17
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7
Collapse this tableExpand this table
File nameAmd64_28f4222f09cc72d7764fb697a9e7e83e_31bf3856ad364e35_6.1.7600.16795_none_219335a6232c1ec0.manifest
File versionNot applicable
File size1,048
Date (UTC)18-Apr-2011
Time (UTC)14:08
PlatformNot applicable
File nameAmd64_2fefe7f25a77fce91d5625a7eb7bf908_31bf3856ad364e35_6.1.7600.20944_none_fb55f09b8d265b7a.manifest
File versionNot applicable
File size1,048
Date (UTC)18-Apr-2011
Time (UTC)14:08
PlatformNot applicable
File nameAmd64_46ada5032eeec4977ae24e92a9782650_31bf3856ad364e35_6.1.7601.17596_none_e8010b2b79916441.manifest
File versionNot applicable
File size1,048
Date (UTC)18-Apr-2011
Time (UTC)14:08
PlatformNot applicable
File nameAmd64_6e6290871a119543bae7183db0db0f7e_31bf3856ad364e35_6.1.7601.21705_none_c1d69b9fc955ef58.manifest
File versionNot applicable
File size1,048
Date (UTC)18-Apr-2011
Time (UTC)14:08
PlatformNot applicable
File nameAmd64_microsoft-windows-mfreadwrite_31bf3856ad364e35_6.1.7600.16795_none_1540115731bd8552.manifest
File versionNot applicable
File size26,703
Date (UTC)16-Apr-2011
Time (UTC)06:06
PlatformNot applicable
File nameAmd64_microsoft-windows-mfreadwrite_31bf3856ad364e35_6.1.7600.20944_none_15febf5a4ab37d37.manifest
File versionNot applicable
File size26,703
Date (UTC)16-Apr-2011
Time (UTC)06:04
PlatformNot applicable
File nameAmd64_microsoft-windows-mfreadwrite_31bf3856ad364e35_6.1.7601.17596_none_17276ea72ee30a95.manifest
File versionNot applicable
File size26,703
Date (UTC)16-Apr-2011
Time (UTC)05:57
PlatformNot applicable
File nameAmd64_microsoft-windows-mfreadwrite_31bf3856ad364e35_6.1.7601.21705_none_18115c5a47b892b6.manifest
File versionNot applicable
File size26,703
Date (UTC)16-Apr-2011
Time (UTC)07:01
PlatformNot applicable
File nameWow64_microsoft-windows-mfreadwrite_31bf3856ad364e35_6.1.7600.16795_none_1f94bba9661e474d.manifest
File versionNot applicable
File size26,701
Date (UTC)16-Apr-2011
Time (UTC)05:03
PlatformNot applicable
File nameWow64_microsoft-windows-mfreadwrite_31bf3856ad364e35_6.1.7600.20944_none_205369ac7f143f32.manifest
File versionNot applicable
File size26,701
Date (UTC)16-Apr-2011
Time (UTC)05:03
PlatformNot applicable
File nameWow64_microsoft-windows-mfreadwrite_31bf3856ad364e35_6.1.7601.17596_none_217c18f96343cc90.manifest
File versionNot applicable
File size26,701
Date (UTC)16-Apr-2011
Time (UTC)04:48
PlatformNot applicable
File nameWow64_microsoft-windows-mfreadwrite_31bf3856ad364e35_6.1.7601.21705_none_226606ac7c1954b1.manifest
File versionNot applicable
File size26,701
Date (UTC)16-Apr-2011
Time (UTC)06:12
PlatformNot applicable

Properties

Article ID: 2529825 - Last Review: June 21, 2014 - Revision: 2.0
Applies to
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Ultimate
  • Windows 7 Starter
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseinter kbexpertisebeginner KB2529825

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