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When you try to watch live TV on the LA7 channel in Windows Media Center, you hear audio, but you do not see video on a computer that is running Windows Vista

This article has been archived. It is offered "as is" and will no longer be updated.
You are using a computer that is running Windows Vista Ultimate or Windows Vista Home Premium. The computer is using an Italian (Rome) 730-megahertz (MHz) multiplexer (mux) that receives a Terrestrial Digital Broadcasting Services (DVB-T) format signal. The mux has an available "Seventh Channel" (LA7) private television channel. When you try to watch live TV on the LA7 channel in Windows Media Center, you hear audio, but you do not see video.

Service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. 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

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: 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.


No prerequisites are required.

Restart requirement

You must restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

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, 32-bit versions
File nameFile versionFile sizeDateTimePlatform
Mpeg2data.ax6.6.6000.2067368,60801-Sep-200702:14Not Applicable
Msdvbnp.ax6.6.6000.2067357,85601-Sep-200702:14Not Applicable
Msnp.ax6.6.6000.2067380,89601-Sep-200702:14Not Applicable
Psisrndr.ax6.6.6000.20673218,62401-Sep-200702:15Not Applicable
Update.mumNot Applicable1,79401-Sep-200713:25Not Applicable
X86_dff9a0ec0669456262c0d6339576ae81_31bf3856ad364e35_6.0.6000.20673_none_e8af425683c98908.manifestNot Applicable71901-Sep-200713:25Not Applicable
X86_microsoft-windows-v..e-filters-tvdigital_31bf3856ad364e35_6.0.6000.20673_none_da57e5d3733cc5cb.manifestNot Applicable84,43701-Sep-200713:25Not Applicable
Windows Vista, 64-bit versions
File nameFile versionFile sizeDateTimePlatform
Amd64_636414b3ea951b557d03e2b771cda583_31bf3856ad364e35_6.0.6000.20673_none_c17691bb4113b5b7.manifestNot Applicable1,08601-Sep-200713:25Not Applicable
Amd64_microsoft-windows-v..e-filters-tvdigital_31bf3856ad364e35_6.0.6000.20673_none_367681572b9a3701.manifestNot Applicable84,47301-Sep-200713:30Not Applicable
Mpeg2data.ax6.6.6000.2067399,32801-Sep-200703:14Not Applicable
Msdvbnp.ax6.6.6000.2067373,21601-Sep-200703:14Not Applicable
Msnp.ax6.6.6000.20673100,86401-Sep-200703:14Not Applicable
Psisrndr.ax6.6.6000.20673288,25601-Sep-200703:15Not Applicable
Update.mumNot Applicable1,79401-Sep-200713:25Not Applicable

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Vista Service Pack 1.
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
Telecom Italia Media

Article ID: 942097 - Last Review: 01/16/2015 10:04:29 - Revision: 3.0

Windows Vista Ultimate, Windows Vista Home Premium, Windows Vista Ultimate 64-bit Edition, Windows Vista Home Premium 64-bit Edition

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