Windows Media Player cannot open filename. You may need to reboot to complete installation of a downloaded component. Please verify that the path and filename are correct and try again. Error=80004005
When video files are created, they can be compressed to make the file size smaller by using a program (or compressor) that is installed on the developer's computer. When you play the video file, your computer must have a decompressor installed that can read that particular compression format. This program is called a codec.
When you try to play a file that uses a codec that is not installed on your computer, the Windows Media Player tries to download the codec from a Microsoft server. If the codec is available, the Windows Media Player installs it on your computer and then plays the file. However, if the codec is not available on the server (for example, because the codec was not created by Microsoft), the Windows Media Player displays a message that your computer is missing a codec.
In some cases, the file that you want to play uses a codec that is not available or compatible with the Windows Media Player. When that happens, you might be unable to use Windows Media Player to play this particular .avi file.
To resolve this problem, locate and download the required codec.
Before you start, you must know which version of Windows your computer is running. To determine which version of Windows that you are running. To verify that you are logged on to Windows with a user account that is a computer administrator, visit the following Microsoft Web site:
, you must know your Windows Media Player version. If you are running Windows Vista, you are running Windows Media Player 11. If you are running Windows XP, check the help that is included with Windows Media Player to find the version.
After you determine which version of Windows Media Player you are running, go to the section for your operating system and Windows Media Player version.
Note If you are running a version of Windows Media Player that is earlier than 6.4, go to the "Earlier versions of Windows Media Player" bullet in the "Next steps" section for help.
In some cases, the error message in Windows Media Player will provide information about the codec file that is required. The error message might also provide a link that you can click to download the codec file. Therefore, to resolve the problem, play the .avi file and check the error message in Windows Media Player for help.
To resolve this problem, follow these steps.
Click Web Help to display information about the missing codec and the corresponding link, if the codec is available to download.
Note If the link to the codec is not available, try searching the Internet for that particular codec to find where it is available. If you cannot determine which codec you must have or you cannot locate it, the codec might not be available. Or, it might not be compatible with the Windows Media Player. Therefore, you might be unable to use the Windows Media Player to play this particular.avi file.
In some cases, the error message in Windows Media Player will provide information about which codec file that is required. The error message might also provide a link that you can click to download the codec file. Therefore, to resolve the problem, play the .avi file and check the error message in Windows Media Player for help.
To resolve this problem, follow these steps.
Click Web Help to display information about the missing codec and the corresponding link, if the codec is available to download.
Note If the link to the codec is not available, try searching the Internet for that particular codec to find where it is available. If you cannot determine which codec you must have or you cannot locate it, the codec might not be available. Or, it might not be compatible with the Windows Media Player. Therefore, you might be unable to use the Windows Media Player to play this particular .avi file.
In some cases, the error message includes the codec identifier, known as the FourCC identifier. You can use the FourCC identifier to find the manufacturer that created the codec. Then, see whether you can obtain the required codec from the manufacturer.
To resolve this problem, follow these steps.
When you receive the error message, check for the FourCC identifier. If the FourCC identifier is available, note it. The four characters following the "vids:" or "vidc:" is the unique FourCC identifier that you can use to find the codec for this particular .avi file.
For example, if the string is "vids:vcr2", "vcr2" is the FourCC identifier.
Note If the FourCC identifier is not listed in the error message, unfortunately you cannot use Windows Media Player to play this particular .avi file.
Use the FourCC identifier to find the manufacturer that created the codec. In step 3 for example, the FourCC identifier was "vcr2". Therefore, search for "vcr2" in the FOURCC column to find the codec and manufacturer. In this example, you will notice that "ATI Video Codec 2" is listed as the name of the codec and "ATI Technologies" is listed as the owner (or manufacturer).
If you cannot find the codec or manufacturer listed, you might try searching for the codec and manufacturer on the Internet by using the FourCC identifier.
Note Be aware that not all manufacturers provide their codecs for you to download. If you cannot obtain the required codec from the manufacturer, you will be unable to use the Windows Media Player to play this particular .avi file.
65416 Hardware and software vendor contact information, A-K
60781 Hardware and software vendor contact information, L-P
60782 Hardware and software vendor contact information, Q-ZMicrosoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.
If the link to the manufacturer is not available on the Microsoft Knowledge Base Web site, try searching the Internet.
If these methods did not work for you, you might want to ask someone you know for help. You can also visit the troubleshooting Web site for the Windows Media Player version that you are running. For more information about how to troubleshoot Windows Media Player, visit the following Microsoft Web sites:
You can also use the Microsoft Customer Support Services Web site to find other solutions to your problem. Some services that the Microsoft Customer Support Services Web sites provide include the following:
Be aware that .avi files can contain several different audio or video formats. To play an .avi file, you must use the .avi file player and the relevant codec file to decompress the .avi file. For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
230687 Err msg: Unable to download an appropriate decompressor
Microsoft does not support playing .avi files that were created by using the MPEG4 version 3 codec. For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base: