This article describes an update that supports the AAC (Advanced Audio Coding) and the LATM (Low Overhead Audio Transport Multiplex) format audios in Windows 8.1, Windows RT 8.1, Windows Server 2012 R2, Windows 8, Windows RT, and Windows Server 2012. The hotfix has a prerequisite.

How to obtain this update and hotfix

To resolve this issue, we have released a hotfix for Windows 8.1, Windows RT 8.1, Windows Server 2012 R2, Windows 8, Windows RT, and Windows Server 2012, and we have released an update rollup for Windows 8, Windows RT, and Windows Server 2012.

The update rollup fixes many other issues in addition to the issue that the hotfix fixes. We recommend that you use the update rollup. The update rollup is larger than the hotfix. Therefore, the update rollup takes longer to download.

Get the update rollup for Windows 8.1, Windows RT 8.1, Windows Server 2012 R2, Windows 8, Windows RT, or Windows Server 2012To resolve this issue, install the update rollup that is dated November 2014.

Get the hotfix for Windows 8.1, Windows RT 8.1, Windows Server 2012 R2, Windows 8, Windows RT, or Windows Server 2012A 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.

PrerequisitesTo apply this hotfix, you have to install update 2919355 in Windows 8.1 or Windows Server 2012 R2.

Registry informationTo use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirementYou may have to restart the computer after you apply this hotfix.

Hotfix replacement informationThis hotfix does not replace a previously released hotfix.

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.

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 8.1 and Windows Server 2012 R2 file information and notes

Important Windows 8.1 hotfixes and Windows Server 2012 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 8.1/Windows Server 2012 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" 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 8.1

File name

File version

File size

Date

Time

Platform

Mfds.dll

12.0.9600.17388

484,864

02-Oct-2014

04:29

x86

Mfmpeg2srcsnk.dll

12.0.9600.17388

705,008

02-Oct-2014

06:16

x86

For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Mfds.dll

12.0.9600.17388

581,120

02-Oct-2014

05:01

x64

Mfmpeg2srcsnk.dll

12.0.9600.17388

816,536

02-Oct-2014

07:00

x64

For Windows RT 8.1

File name

File version

File size

Date

Time

Platform

Mfds.dll

12.0.9600.17388

377,856

02-Oct-2014

04:24

Not applicable

Mfmpeg2srcsnk.dll

12.0.9600.17388

527,872

02-Oct-2014

05:38

Not applicable

Windows 8 and Windows Server 2012 file information and notes

Important Windows 8 hotfixes and Windows Server 2012 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 8/Windows Server 2012" 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" 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 8

File name

File version

File size

Date

Time

Platform

Mfmpeg2srcsnk.dll

12.0.9200.17124

513,536

22-Sep-2014

03:56

x86

Mfmpeg2srcsnk.dll

12.0.9200.21241

513,536

22-Sep-2014

03:26

x86

For all supported x64-based versions of Windows 8 and of Windows Server 2012

File name

File version

File size

Date

Time

Platform

Mfmpeg2srcsnk.dll

12.0.9200.17124

673,792

22-Sep-2014

05:38

x64

Mfmpeg2srcsnk.dll

12.0.9200.21241

673,792

22-Sep-2014

04:30

x64

For Windows RT

File name

File version

File size

Date

Time

Platform

Mfmpeg2srcsnk.dll

12.0.9200.17124

511,488

22-Sep-2014

03:32

Not applicable

Additional file information

Additional file information for Windows 8.1 and for Windows Server 2012 R2

Additional files for all supported x86-based versions of Windows 8.1

File property

Value

File name

X86_0d16e955fb23e16d0067d4536f86be27_31bf3856ad364e35_6.3.9600.17388_none_fdbd4519ee58db9d.manifest

File version

Not applicable

File size

701

Date (UTC)

03-Oct-2014

Time (UTC)

19:24

Platform

Not applicable

File name

X86_bff069446a9d41899264f80c7ec9547a_31bf3856ad364e35_6.3.9600.17388_none_7db4e8a334afbcf6.manifest

File version

Not applicable

File size

692

Date (UTC)

03-Oct-2014

Time (UTC)

19:24

Platform

Not applicable

File name

X86_microsoft-windows-mfds_31bf3856ad364e35_6.3.9600.17388_none_3a3208ee3913249b.manifest

File version

Not applicable

File size

8,712

Date (UTC)

02-Oct-2014

Time (UTC)

06:33

Platform

Not applicable

File name

X86_microsoft-windows-mfmpeg2srcsnk_31bf3856ad364e35_6.3.9600.17388_none_e04b4760e9ed0d69.manifest

File version

Not applicable

File size

76,107

Date (UTC)

02-Oct-2014

Time (UTC)

06:33

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File property

Value

File name

Amd64_759e7d194bb92b8a30eb07d6ea9dc032_31bf3856ad364e35_6.3.9600.17388_none_7e0e771fbc823baf.manifest

File version

Not applicable

File size

1,052

Date (UTC)

03-Oct-2014

Time (UTC)

19:14

Platform

Not applicable

File name

Amd64_dd5e4ba2f17003ceda95c28a9d703739_31bf3856ad364e35_6.3.9600.17388_none_1b350ae3dea483a1.manifest

File version

Not applicable

File size

1,034

Date (UTC)

03-Oct-2014

Time (UTC)

19:14

Platform

Not applicable

File name

Amd64_microsoft-windows-mfds_31bf3856ad364e35_6.3.9600.17388_none_9650a471f17095d1.manifest

File version

Not applicable

File size

8,714

Date (UTC)

02-Oct-2014

Time (UTC)

07:08

Platform

Not applicable

File name

Amd64_microsoft-windows-mfmpeg2srcsnk_31bf3856ad364e35_6.3.9600.17388_none_3c69e2e4a24a7e9f.manifest

File version

Not applicable

File size

76,109

Date (UTC)

02-Oct-2014

Time (UTC)

07:08

Platform

Not applicable

File name

Wow64_microsoft-windows-mfds_31bf3856ad364e35_6.3.9600.17388_none_a0a54ec425d157cc.manifest

File version

Not applicable

File size

8,714

Date (UTC)

02-Oct-2014

Time (UTC)

06:33

Platform

Not applicable

File name

Wow64_microsoft-windows-mfmpeg2srcsnk_31bf3856ad364e35_6.3.9600.17388_none_46be8d36d6ab409a.manifest

File version

Not applicable

File size

22,628

Date (UTC)

02-Oct-2014

Time (UTC)

06:33

Platform

Not applicable

Additional files for Windows RT 8.1

File property

Value

File name

Arm_793976389236a7a3ed0d0a1b76986012_31bf3856ad364e35_6.3.9600.17388_none_dd3b9d71152d70b8.manifest

File version

Not applicable

File size

701

Date (UTC)

03-Oct-2014

Time (UTC)

21:36

Platform

Not applicable

File name

Arm_8a86852a2c9c716c026ead9b4ea6dec3_31bf3856ad364e35_6.3.9600.17388_none_33af63083d0099c3.manifest

File version

Not applicable

File size

692

Date (UTC)

03-Oct-2014

Time (UTC)

21:36

Platform

Not applicable

File name

Arm_microsoft-windows-mfds_31bf3856ad364e35_6.3.9600.17388_none_3a347b4639104361.manifest

File version

Not applicable

File size

8,712

Date (UTC)

02-Oct-2014

Time (UTC)

05:46

Platform

Not applicable

File name

Arm_microsoft-windows-mfmpeg2srcsnk_31bf3856ad364e35_6.3.9600.17388_none_e04db9b8e9ea2c2f.manifest

File version

Not applicable

File size

76,107

Date (UTC)

02-Oct-2014

Time (UTC)

05:46

Platform

Not applicable

Additional file information for Windows 8 and for Windows Server 2012

Additional files for all supported x86-based versions of Windows 8

File property

Value

File name

X86_8b58afad0289b4f87adc3c876d073e64_31bf3856ad364e35_6.2.9200.17124_none_e771abd623897c96.manifest

File version

Not applicable

File size

701

Date (UTC)

22-Sep-2014

Time (UTC)

12:07

Platform

Not applicable

File name

X86_f6dd9c0d2a4a6c36664da69b27fb17ee_31bf3856ad364e35_6.2.9200.21241_none_37e03980108cc945.manifest

File version

Not applicable

File size

701

Date (UTC)

22-Sep-2014

Time (UTC)

12:07

Platform

Not applicable

File name

X86_microsoft-windows-mfmpeg2srcsnk_31bf3856ad364e35_6.2.9200.17124_none_4893694e9f8d359c.manifest

File version

Not applicable

File size

72,606

Date (UTC)

22-Sep-2014

Time (UTC)

04:41

Platform

Not applicable

File name

X86_microsoft-windows-mfmpeg2srcsnk_31bf3856ad364e35_6.2.9200.21241_none_49046563b8bdc143.manifest

File version

Not applicable

File size

72,606

Date (UTC)

22-Sep-2014

Time (UTC)

03:52

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 8 and of Windows Server 2012

File property

Value

File name

Amd64_2cc2bb31fcd8652a95eb0922f6814e73_31bf3856ad364e35_6.2.9200.21241_none_c759cf1836d1422d.manifest

File version

Not applicable

File size

1,052

Date (UTC)

22-Sep-2014

Time (UTC)

12:08

Platform

Not applicable

File name

Amd64_6c044e60dcfed61c033875b75ff54961_31bf3856ad364e35_6.2.9200.21241_none_cb4b30458d6107b1.manifest

File version

Not applicable

File size

705

Date (UTC)

22-Sep-2014

Time (UTC)

12:08

Platform

Not applicable

File name

Amd64_6d02aa552e8c56aad09f9f78b3964589_31bf3856ad364e35_6.2.9200.17124_none_8a9ff9a77c8dddcb.manifest

File version

Not applicable

File size

705

Date (UTC)

22-Sep-2014

Time (UTC)

12:08

Platform

Not applicable

File name

Amd64_9745f12c0cca20e2a76a15ef5a98bc77_31bf3856ad364e35_6.2.9200.21241_none_b1dc3b2bf0759cbf.manifest

File version

Not applicable

File size

705

Date (UTC)

22-Sep-2014

Time (UTC)

12:08

Platform

Not applicable

File name

Amd64_a3e44c7c4ca62cc4a7acb13d993a08f9_31bf3856ad364e35_6.2.9200.17124_none_3646c2ed2fe781bc.manifest

File version

Not applicable

File size

705

Date (UTC)

22-Sep-2014

Time (UTC)

12:08

Platform

Not applicable

File name

Amd64_b58a18bdc6f7791e48b287615ed73255_31bf3856ad364e35_6.2.9200.17124_none_ad97059cedb46618.manifest

File version

Not applicable

File size

1,052

Date (UTC)

22-Sep-2014

Time (UTC)

12:08

Platform

Not applicable

File name

Amd64_microsoft-windows-mfmpeg2srcsnk_31bf3856ad364e35_6.2.9200.17124_none_a4b204d257eaa6d2.manifest

File version

Not applicable

File size

72,608

Date (UTC)

22-Sep-2014

Time (UTC)

06:16

Platform

Not applicable

File name

Amd64_microsoft-windows-mfmpeg2srcsnk_31bf3856ad364e35_6.2.9200.21241_none_a52300e7711b3279.manifest

File version

Not applicable

File size

72,608

Date (UTC)

22-Sep-2014

Time (UTC)

05:44

Platform

Not applicable

File name

Wow64_microsoft-windows-mfmpeg2srcsnk_31bf3856ad364e35_6.2.9200.17124_none_af06af248c4b68cd.manifest

File version

Not applicable

File size

19,127

Date (UTC)

22-Sep-2014

Time (UTC)

04:41

Platform

Not applicable

File name

Wow64_microsoft-windows-mfmpeg2srcsnk_31bf3856ad364e35_6.2.9200.21241_none_af77ab39a57bf474.manifest

File version

Not applicable

File size

19,127

Date (UTC)

22-Sep-2014

Time (UTC)

04:04

Platform

Not applicable

Additional files for Windows RT

File property

Value

File name

Arm_5a70c138dd9cc3555428d6fa072f42ac_31bf3856ad364e35_6.2.9200.17124_none_db33c35f88e94498.manifest

File version

Not applicable

File size

701

Date (UTC)

22-Sep-2014

Time (UTC)

12:07

Platform

Not applicable

File name

Arm_microsoft-windows-mfmpeg2srcsnk_31bf3856ad364e35_6.2.9200.17124_none_4895dba69f8a5462.manifest

File version

Not applicable

File size

72,606

Date (UTC)

22-Sep-2014

Time (UTC)

06:00

Platform

Not applicable


Status

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

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