Symptoms

Consider the following scenario in a network environment:

  • You configure a proxy server to use authentication.

  • You configure the Internet access settings on the proxy server to give the Windows Media Player clients access to Internet content through the proxy server.

  • You try to play some Internet content in Windows Media Player on a computer that is running Windows 7.

In this scenario, the content cannot be played, and Windows Media Player cannot pass proxy authentication.

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 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


  • 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 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

Platform

Mf.dll

12.0.7600.20912

3,182,592

01-Mar-2011

08:08

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

12.0.7600.16385

103,424

14-Jul-2009

01:15

x86

Rrinstaller.exe

11.0.7600.16385

50,176

14-Jul-2009

01:14

x86

Mf.dll

12.0.7601.21671

3,207,680

01-Mar-2011

08:08

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

12.0.7600.16385

103,424

14-Jul-2009

01:15

x86

Rrinstaller.exe

11.0.7600.16385

50,176

14-Jul-2009

01:14

x86

For all supported x64-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Mf.dll

12.0.7600.20912

4,068,864

01-Mar-2011

08:09

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

12.0.7600.20912

206,848

01-Mar-2011

08:09

x64

Rrinstaller.exe

11.0.7600.16385

55,808

14-Jul-2009

01:39

x64

Mf.dll

12.0.7601.21671

4,120,064

01-Mar-2011

08:13

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

12.0.7601.17514

206,848

20-Nov-2010

13:26

x64

Rrinstaller.exe

11.0.7600.16385

55,808

14-Jul-2009

01:39

x64

Mf.dll

12.0.7600.20912

3,182,592

01-Mar-2011

08:08

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

12.0.7600.16385

103,424

14-Jul-2009

01:15

x86

Rrinstaller.exe

11.0.7600.16385

50,176

14-Jul-2009

01:14

x86

Mf.dll

12.0.7601.21671

3,207,680

01-Mar-2011

08:08

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

12.0.7600.16385

103,424

14-Jul-2009

01:15

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:

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

Update.mum

File version

Not applicable

File size

2,280

Date (UTC)

01-Mar-2011

Time (UTC)

23:00

Platform

Not applicable

File name

X86_1d176412f226b5930cf27485753cc059_31bf3856ad364e35_6.1.7600.20912_none_e4fb72c166cbbe96.manifest

File version

Not applicable

File size

703

Date (UTC)

01-Mar-2011

Time (UTC)

23:00

Platform

Not applicable

File name

X86_7b4a0e83d8c1f0aa451b3cdfb2046d73_31bf3856ad364e35_6.1.7601.21671_none_733c71130a436987.manifest

File version

Not applicable

File size

703

Date (UTC)

01-Mar-2011

Time (UTC)

23:00

Platform

Not applicable

File name

X86_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7600.20912_none_9d07da3e86fcc1e5.manifest

File version

Not applicable

File size

265,911

Date (UTC)

01-Mar-2011

Time (UTC)

23:03

Platform

Not applicable

File name

X86_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7601.21671_none_9eac558c8454bef9.manifest

File version

Not applicable

File size

265,911

Date (UTC)

01-Mar-2011

Time (UTC)

23:03

Platform

Not applicable

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

File name

Amd64_3d814d74fa2cc462bebfa8724915ebcb_31bf3856ad364e35_6.1.7601.21671_none_c3a91d4f265c6c99.manifest

File version

Not applicable

File size

1,056

Date (UTC)

01-Mar-2011

Time (UTC)

23:00

Platform

Not applicable

File name

Amd64_988f4af487a86732bc70b84f020af37b_31bf3856ad364e35_6.1.7600.20912_none_ee25b4d554fde366.manifest

File version

Not applicable

File size

1,056

Date (UTC)

01-Mar-2011

Time (UTC)

23:00

Platform

Not applicable

File name

Amd64_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7600.20912_none_f92675c23f5a331b.manifest

File version

Not applicable

File size

265,915

Date (UTC)

01-Mar-2011

Time (UTC)

23:00

Platform

Not applicable

File name

Amd64_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7601.21671_none_facaf1103cb2302f.manifest

File version

Not applicable

File size

265,915

Date (UTC)

01-Mar-2011

Time (UTC)

23:00

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,296

Date (UTC)

01-Mar-2011

Time (UTC)

23:00

Platform

Not applicable

File name

Wow64_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7600.20912_none_037b201473baf516.manifest

File version

Not applicable

File size

162,389

Date (UTC)

01-Mar-2011

Time (UTC)

23:00

Platform

Not applicable

File name

Wow64_microsoft-windows-mediafoundation_31bf3856ad364e35_6.1.7601.21671_none_051f9b627112f22a.manifest

File version

Not applicable

File size

162,389

Date (UTC)

01-Mar-2011

Time (UTC)

23:00

Platform

Not applicable

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