FIX: SAMI scripts fire at seemingly random times when you perform a seek operation in a video file that has an associated SAMI file

When you perform a seek operation in a video file that has an associated Synchronized Accessible Media Interchange (SAMI) file, the SAMI scripts fire at seemingly random times. This behavior only occurs when you perform a seek operation.

For example, a SAMI script is scheduled to fire at zero minutes, at five minutes, at ten minutes, at fifteen minutes, and at twenty minutes. If you seek to the 9:36 point in the video, you see the script that is intended for the fifth minute. If you seek back to the 4:45 point in the video, you see the script that is intended for the tenth minute.

This problem occurs because changes to DirectX Video Acceleration (DXVA) have changed the script firing times.

The following files are available for download from the Microsoft Download Center:

Windows Vista, 32-bit versions (all languages)

Download the Windows6.0-KB945381-x86.msu package now. (http://download.microsoft.com/download/4/3/B/43BC8B87-7567-4A64-95B6-DF5241045907/Windows6.0-KB945381-x86.msu)

Windows Vista, 64-bit versions (all languages)

Download the Windows6.0-KB945381-x64.msu package now. (http://download.microsoft.com/download/4/3/B/43BC8B87-7567-4A64-95B6-DF5241045907/Windows6.0-KB945381-x64.msu)

Windows Media Player 11 for Windows XP for x32-based computers (all languages)

Download the WindowsMedia11-KB945381-x86-INTL.exe package now. (http://download.microsoft.com/download/b/d/3/bd3c6432-59c0-4de3-a765-929a5b87c16d/windowsmedia11-kb945381-x86-intl.exe)

Windows Media Player 11 for Windows XP for x64-based computers (all languages)

Download the WindowsMedia11-KB945381-x64-INTL.exe package now. (http://download.microsoft.com/download/b/d/3/bd3c6432-59c0-4de3-a765-929a5b87c16d/windowsmedia11-kb945381-x64-intl.exe)

Note This hotfix does not have a native x64-based version for Windows XP x64 Edition because there is not a native x64-based version of the Windows Media Format Runtime 11 series. The WindowsMedia11-KB945381-x64-INTL.exe package applies the 32-bit version of this hotfix to the 32-bit version of Wmp.dll on Windows XP x64 Edition.

Windows Media Player 10 for Windows XP for x32-based computers (all languages)

Download the WindowsMedia10-KB945381-x86-INTL.exe package now. (http://download.microsoft.com/download/b/d/3/bd3c6432-59c0-4de3-a765-929a5b87c16d/windowsmedia10-kb945381-x86-intl.exe)

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

The global 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

Windows Vista 32-bit versions Service Pack 1

Windows Vista 64-bit versions Service Pack 1

Windows Media Player 10 for Windows XP (all languages)

Windows Media Player 11 for Windows XP (all languages)

Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.

When you perform a seek operation in a video file after you have applied this hotfix, SAMI scripts fire the script command that is both earlier than and closest to the seek point. The video performs as if you have played the file from the beginning without performing a seek operation.

For more information about using SAMI for closed captioning, visit the following Microsoft Developer Network (MSDN) Web site: