Updating iTunes for Windows XP failed; no longer functions I am getting this error message when I try to open iTunes:

iTunes.exe - Entry Point Not Found. The procedure entry point A VCFAssetCreateWithByteStreamAndOptions could not be located in the dynamic link library AVFoundationCF.dll

When I click OK, it states that "iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows error 127)."

I have tried to do the fix but it does not work.
This will probably be most easily resolved by re-downloading the full installer from apple.com/itunes and running it.

Note that you don't actually have to fill in an e-mail address in order to download it. Uncheck the boxes, click the Download button, and it should start within a few short seconds.

After the download completes, run the installer and try to open iTunes again.