Symptoms

Consider the following scenario:

  • You enable network sharing on a computer that is running Windows 7.

  • The Allow the computer to enter Away mode is selected for the Media Sharing section in the selected power plan.

  • You do not share media on this computer, such as audio, video and pictures.

In this scenario, the computer cannot enter sleep or hibernation.

Cause

This issue occurs because the Windows Media Player network sharing service sets power state flags when media is shared. When you stop sharing media, the power state flags are not reset to allow the computer to enter sleep or hibernation.

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 Web site:

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 .

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.

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

Connectionmanager.xml

Not Applicable

5,422

10-Jun-2009

21:46

Not Applicable

Contentdirectory.xml

Not Applicable

8,338

10-Jun-2009

21:46

Not Applicable

Mediareceiverregistrar.xml

Not Applicable

2,574

10-Jun-2009

21:46

Not Applicable

Wmpnetwk.exe

12.0.7600.16544

1,121,280

05-Mar-2010

07:42

x86

Wmpnetwk.mof

Not Applicable

4,789

10-Jun-2009

21:46

Not Applicable

Wmpnetwk.exe

12.0.7600.20660

1,121,280

05-Mar-2010

07:28

x86

Wmpnetwk.mof

Not Applicable

4,789

10-Jun-2009

21:46

Not Applicable

For all supported x64-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Connectionmanager.xml

Not Applicable

5,422

10-Jun-2009

21:07

Not Applicable

Contentdirectory.xml

Not Applicable

8,338

10-Jun-2009

21:07

Not Applicable

Mediareceiverregistrar.xml

Not Applicable

2,574

10-Jun-2009

21:07

Not Applicable

Wmpnetwk.exe

12.0.7600.16544

1,525,248

05-Mar-2010

07:52

x64

Wmpnetwk.mof

Not Applicable

4,789

10-Jun-2009

21:07

Not Applicable

Wmpnetwk.exe

12.0.7600.20660

1,525,248

05-Mar-2010

07:59

x64

Wmpnetwk.mof

Not Applicable

4,789

10-Jun-2009

21:07

Not Applicable

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

File version

File size

Date

Time

Platform

Package_for_kb981112_rtm_bf~31bf3856ad364e35~x86~~6.1.1.0.mum

Not Applicable

1,431

05-Mar-2010

10:56

Not Applicable

Package_for_kb981112_rtm~31bf3856ad364e35~x86~~6.1.1.0.mum

Not Applicable

1,450

05-Mar-2010

10:56

Not Applicable

Update-bf.mum

Not Applicable

1,429

05-Mar-2010

10:56

Not Applicable

X86_microsoft-windows-wmpnss-service_31bf3856ad364e35_6.1.7600.16544_none_038765282fc7a812.manifest

Not Applicable

166,044

05-Mar-2010

08:19

Not Applicable

X86_microsoft-windows-wmpnss-service_31bf3856ad364e35_6.1.7600.20660_none_03f760f348f91a62.manifest

Not Applicable

166,044

05-Mar-2010

08:06

Not Applicable

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

File name

File version

File size

Date

Time

Platform

Amd64_microsoft-windows-wmpnss-service_31bf3856ad364e35_6.1.7600.16544_none_5fa600abe8251948.manifest

Not Applicable

166,048

05-Mar-2010

09:20

Not Applicable

Amd64_microsoft-windows-wmpnss-service_31bf3856ad364e35_6.1.7600.20660_none_6015fc7701568b98.manifest

Not Applicable

166,048

05-Mar-2010

09:12

Not Applicable

Package_for_kb981112_rtm_bf~31bf3856ad364e35~amd64~~6.1.1.0.mum

Not Applicable

1,439

05-Mar-2010

10:56

Not Applicable

Package_for_kb981112_rtm~31bf3856ad364e35~amd64~~6.1.1.0.mum

Not Applicable

1,458

05-Mar-2010

10:56

Not Applicable

Update-bf.mum

Not Applicable

1,437

05-Mar-2010

10:56

Not Applicable

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