I have seen one or two users at work who have reported that their iTunes is not working.
The error reflects around a missing DLL file.
After much research it's determined that the only solution to this problem is a complete uninstall of ALL Apple software including Bonjour and iTunes.
Just uninstalling iTunes will not resolve the problem.
Sorry this is so vague with limited information but i forgot to jot down the error to report to you guise.
But if anyone has any updates feel free to post.