Symptoms

Assume that you have a computer that is running Windows 8.1, Windows RT 8.1, Windows Server 2012 R2, Windows 7 Service Pack 1 (SP1), or Windows Server 2008 R2 SP1. When you repeat a video that is played by the Windows Media Player ActiveX control on a web page in Internet Explorer, a memory leak occurs on the computer.

Resolution

To resolve this issue, we have released a hotfix for Windows 7 and Windows Server 2008 R2, and we have released an update rollup for Windows 8.1, Windows Server 2012 R2. 

Before you install the hotfix, check the Prerequisites section in this article.

Get the update rollup for Windows 8.1 or Windows Server 2012 R2

To resolve this issue, install the update rollup that is dated November 2014.

Get the November 2014 update rollup for Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2

Get the hotfix for Windows 7 or Windows Server 2008 R2

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 this specific problem.

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, submit a request to 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.Bookmark: Prerequisites

Prerequisites

To apply this hotfix, you must have Service Pack 1 installed in Windows 7 or 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 may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

More 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 and 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 1.18xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    GDR

    6.1.760 1.22xxx

    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) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very 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

Platform

Mfplat.dll

12.0.7601.22820

354,816

26-Sep-2014

01:39

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

Mfplat.dll

12.0.7601.22820

433,152

26-Sep-2014

02:07

x64

Mfplat.dll

12.0.7601.22820

354,816

26-Sep-2014

01:39

x86

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

X86_c4b73075e901b469db9c6e7196d3255a_31bf3856ad364e35_6.1.7601.22820_none_9327a575b72a2aed.manifest

File version

Not Applicable

File size

694

Date (UTC)

26-Sep-2014

Time (UTC)

20:14

Platform

Not Applicable

File name

X86_microsoft-windows-mfplat_31bf3856ad364e35_6.1.7601.22820_none_f92cbb53cae0d47b.manifest

File version

Not Applicable

File size

306,547

Date (UTC)

26-Sep-2014

Time (UTC)

02:02

Platform

Not Applicable

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

File name

Amd64_125d1603b3b01ac38e89bf0edf8d52bc_31bf3856ad364e35_6.1.7601.22820_none_65234c677d5c0dee.manifest

File version

Not Applicable

File size

1,036

Date (UTC)

26-Sep-2014

Time (UTC)

20:14

Platform

Not Applicable

File name

Amd64_microsoft-windows-mfplat_31bf3856ad364e35_6.1.7601.22820_none_554b56d7833e45b1.manifest

File version

Not Applicable

File size

306,551

Date (UTC)

26-Sep-2014

Time (UTC)

02:29

Platform

Not Applicable

File name

X86_microsoft-windows-mfplat_31bf3856ad364e35_6.1.7601.22820_none_f92cbb53cae0d47b.manifest

File version

Not Applicable

File size

306,547

Date (UTC)

26-Sep-2014

Time (UTC)

02:02

Platform

Not Applicable

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

See the terminology that Microsoft uses to describe software updates.

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