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When you repeatedly switch between multiple video files that have different formats, the playback application may unexpectedly quit.
The playback application uses the Video Mixer Renderer (VMR). The VMR sets up a callback on a timer. When the timer event is raised, the callback may be referencing a destroyed instance of the VMR. Therefore, when the callback is made, an access violation occurs.
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119591 How to obtain Microsoft support files from online services
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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 tool in Control Panel.
Date Time Version Size File name -------------------------------------------------------- 15-Jul-2005 01:33 6.5.2600.2720 1,287,680 Quartz.dll
Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.
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824684 Description of the standard terminology that is used to describe Microsoft software updates