A hotfix is available that fixes certain media playback problems on a Windows Vista-based computer

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Article ID: 956554 - View products that this article applies to.
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SYMPTOMS

On a Windows Vista-based computer, you may experience the following media playback problems.

Problem 1

When you play some MPEG-2 videos in a multimedia application, the application crashes if it starts multiple instances of the MPEG-2 decoder at the same time. For example, this problem typically occurs when you play multiple MPEG-2 videos in a playlist. When you do this, the application crashes when one video ends and the next video starts.

Problem 2

Consider the following scenario:
  • The computer has multiple graphics adapters installed and multiple monitors connected.
  • You play a DVD or a TV program in Windows Media Center.
  • You start Windows Media Center on a secondary monitor, or you move Windows Media Center to a secondary monitor while the video is playing.
In this scenario, the video that is displayed on the secondary monitor may appear garbled. Or, Windows Media Center may crash.

These problems occur only on computers that have certain graphics hardware installed.

CAUSE

Cause of problem 1

When you play back certain video formats by using hardware decode acceleration, this requires proprietary encryption libraries that are compiled into the MPEG-2 video decoder. However, when multiple instances of the MPEG-2 decoder in the same process try to access the encryption library at the same time, a driver crash is likely to occur.

Cause of problem 2

This problem occurs because the content protection functionality of certain graphics hardware may be unable to determine which graphics processing unit is being used.

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 this specific problem. 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=support
Note 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 on a Windows Vista-based computer, you must have Windows Vista Service Pack 1 (SP1) installed.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack

Restart requirement

To avoid restarting the computer, make sure that no multimedia application is running when you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista file information notes

  • The MANIFEST files (.manifest) and MUM files (.mum) that are installed for each environment are listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Msmpeg2vdec-ppdlic.xrm-msNot Applicable3,08220-Aug-200803:03Not Applicable
Msmpeg2vdec.dll11.0.6001.7106588,28820-Aug-200803:33x86
For all supported x64-based versions of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Msmpeg2vdec-ppdlic.xrm-msNot Applicable3,08220-Aug-200804:15Not Applicable
Msmpeg2vdec.dll11.0.6001.7106744,96020-Aug-200804:46x64
Msmpeg2vdec-ppdlic.xrm-msNot Applicable3,08220-Aug-200803:03Not Applicable
Msmpeg2vdec.dll11.0.6001.7106588,28820-Aug-200803:33x86

Additional file information for Windows Server 2008

Additional files for all supported x86-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File namePackage_1_for_kb956554~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,929
Date (UTC)21-Aug-2008
Time (UTC)00:46
PlatformNot Applicable
File namePackage_for_kb956554_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,367
Date (UTC)21-Aug-2008
Time (UTC)00:46
PlatformNot Applicable
File namePackage_for_kb956554_client~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,430
Date (UTC)21-Aug-2008
Time (UTC)00:46
PlatformNot Applicable
File nameX86_e26dcfc2295566bd8f3a767223078511_31bf3856ad364e35_6.0.6001.22247_none_e81f25392ef4e2e6.manifest
File versionNot Applicable
File size699
Date (UTC)21-Aug-2008
Time (UTC)00:46
PlatformNot Applicable
File nameX86_microsoft-windows-msmpeg2vdec_31bf3856ad364e35_6.0.6001.22247_none_915ca5ccd139c5db.manifest
File versionNot Applicable
File size15,107
Date (UTC)20-Aug-2008
Time (UTC)04:07
PlatformNot Applicable
Additional files for all supported x64-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameAmd64_c8b231c304f69ef563b60ebc92f35c31_31bf3856ad364e35_6.0.6001.22247_none_8b14af8aa720437a.manifest
File versionNot Applicable
File size1,046
Date (UTC)21-Aug-2008
Time (UTC)00:46
PlatformNot Applicable
File nameAmd64_microsoft-windows-msmpeg2vdec_31bf3856ad364e35_6.0.6001.22247_none_ed7b415089973711.manifest
File versionNot Applicable
File size15,131
Date (UTC)20-Aug-2008
Time (UTC)05:25
PlatformNot Applicable
File namePackage_1_for_kb956554~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,158
Date (UTC)21-Aug-2008
Time (UTC)00:46
PlatformNot Applicable
File namePackage_for_kb956554_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,375
Date (UTC)21-Aug-2008
Time (UTC)00:46
PlatformNot Applicable
File namePackage_for_kb956554_client~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,438
Date (UTC)21-Aug-2008
Time (UTC)00:46
PlatformNot Applicable
File nameX86_microsoft-windows-msmpeg2vdec_31bf3856ad364e35_6.0.6001.22247_none_915ca5ccd139c5db.manifest
File versionNot Applicable
File size15,107
Date (UTC)20-Aug-2008
Time (UTC)04:07
PlatformNot 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

Properties

Article ID: 956554 - Last Review: October 8, 2011 - Revision: 2.0
APPLIES TO
  • Windows Vista Starter
  • Windows Vista Home Premium
  • Windows Vista Home Basic
  • Windows Vista Enterprise
  • Windows Vista Business
  • Windows Vista Ultimate
  • Windows Vista Business 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Service Pack 1
Keywords: 
kbexpertisebeginner kbexpertiseinter kbbug kbfix kbqfe KB956554

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