Symptoms

On a computer that is running Windows 7, you install a third-party digital signal processor (DSP) plug-in for Windows Media Player. In this scenario, when you try to play back a playlist, Windows Media Player stops responding (hangs) or crashes.

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

No prerequisites are required.

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 English (United States) 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 maintaining the state of the updated component. 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

Wmpeffects.dll

12.0.7600.20614

352,256

11-Jan-2010

07:04

x86

For all supported x64-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Wmpeffects.dll

12.0.7600.20614

605,184

11-Jan-2010

07:59

x64

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 the Windows Media Player DSP plug-ins, visit the following Microsoft Developer Network (MSDN) Web site:

General information about Windows Media Player DSP plug-insFor more information about the plug-ins for Windows Media Player, visit the following Microsoft Web site:

General information about the plug-ins for Windows Media PlayerFor 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 information and the solution in this document represents the current view of Microsoft Corporation on these issues as of the date of publication. This solution is available through Microsoft or through a third-party provider. Microsoft does not specifically recommend any third-party provider or third-party solution that this article might describe. There might also be other third-party providers or third-party solutions that this article does not describe. Because Microsoft must respond to changing market conditions, this information should not be interpreted to be a commitment by Microsoft. Microsoft cannot guarantee or endorse the accuracy of any information or of any solution that is presented by Microsoft or by any mentioned third-party provider.

Microsoft makes no warranties and excludes all representations, warranties, and conditions whether express, implied, or statutory. These include but are not limited to representations, warranties, or conditions of title, non-infringement, satisfactory condition, merchantability, and fitness for a particular purpose, with regard to any service, solution, product, or any other materials or information. In no event will Microsoft be liable for any third-party solution that this article mentions.

Additional file information

Additional file information for Windows 7

Additional files for all supported x86-based versions of Windows 7

File name

X86_cbf56195e254ab07dc5da0b54ed62958_31bf3856ad364e35_6.1.7600.20614_none_a7b639563307cb26.manifest

File version

Not applicable

File size

710

Date (UTC)

11-Jan-2010

Time (UTC)

10:15

Platform

Not applicable

File name

X86_microsoft-windows-mediaplayer-wmpeffects_31bf3856ad364e35_6.1.7600.20614_none_f9f88d2c09ab05c3.manifest

File version

Not applicable

File size

7,538

Date (UTC)

11-Jan-2010

Time (UTC)

07:26

Platform

Not applicable

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

File name

Amd64_5fa88bcc4d7e9030eed703f3f57a6145_31bf3856ad364e35_6.1.7600.20614_none_41dc55155463fbf4.manifest

File version

Not applicable

File size

1,068

Date (UTC)

11-Jan-2010

Time (UTC)

10:15

Platform

Not applicable

File name

Amd64_microsoft-windows-mediaplayer-wmpeffects_31bf3856ad364e35_6.1.7600.20614_none_561728afc20876f9.manifest

File version

Not applicable

File size

7,540

Date (UTC)

11-Jan-2010

Time (UTC)

08:24

Platform

Not applicable

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