I got the email you posted this, tried the whole thing, in the exact steps and it didn't resolve the problem.
I uninstalled everything in the order listed, I verified everything was removed, I removed the things in the C files - EXCEPT the one that said C program files common files APPLE INTERNET - it would not remove, said I didn't have permission to remove it...
emptied my recycle bin
restarted my computer
reinstalled Itunes and components
tried to open itunes
doesn't work
as soon as I open it it says it's not working and windows will shut it down and let me know when they can resolve the problem, not likely.
Thanks for trying.