Apple expert

MobileMe error message:
AppleSyncModifier.exe – Unable to Locate Component.Apple Application Support is missing.This application has failed to start because CoreFoundation.dll was not found. Re-installing the application may fix this problem.
Solution:
download corefoundation.dll

Error message:
Error 7
Windows error 998
Data Execution Prevention
When trying to install iTunes on windows vista/windows 7.

Windows cannot access the file C:\Program Files\QuickTime\QTSystem\QuickTime.qts for one of the following reasons: there is a problem with the network connection, the disk that the file is stored on, or the storage drivers
installed on this computer; or the disk is missing. Windows closed the program QuickTime because of this error.
The application, C:\Program Files\iTunes\iTunes.exe, generated an [...]

fdc:iTunes.exe – Corrupt File. The file or directory \WINDOWS\QTFont.qfn is corrupt and unreadable. Please run the Chkdsk utility.

Errror message:
The installer encountered errors before iTunes could be configured. Your system has not been modified. To retry these operations at a later time, please run the installer again.