CoreVideo.dll file is missing from iTunes.
I had numerous problems with trying to use iTunes in that it kept complaining about QuickTime. I uninstalled both QuickTime and iTunes and re-installed both to no avail. Finally, I contacted Apple support.
After removing and re-installing both QuickTime and iTunes again for the "um-tenth" time I was told it was a problem with the laptop itself and I should contact Sony.
The solution to the problem was to download both "CoreVideo.dll"; and "CoreAudioToolbox.dll" from Apple's website using "%ProgramFiles%\Common Files\Apple\Apple Application Support\CoreVideo.dll" and "%ProgramFiles%\Common Files\Apple\Apple Application Support\CoreAudioToolbox.dll" respectively and then all was okay.
Hope this might help others.
Cheers.
K,
copy and paste the following, one at a time, into your browser page address "%ProgramFiles%\Common Files\Apple\Apple Application Support\CoreVideo.dll" and "%ProgramFiles%\Common Files\Apple\Apple Application Support\CoreAudioToolbox.dll".
As you do each one it will ask you whether you want to save the files. Say "Save" and save them to the "iTunes" directory. You will need administrator privilege to do this. If it won't let you save them in that directory, save them somewhere else and then copy and paste them to the "iTunes" directory later.
Hope this helps.
Cheers.
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http://support.apple.com/kb/TS5376
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