Well, I'm in the same boat tonight, too. Got the error about MSCVR80.dll missing. Couldn't get iTunes to even start after that, so I went to the Apple site & downloaded iTunes. Tried to install... get to a certain point and get the following error: Service 'Apple Mobile Device' (Apple Mobile Device) failed to start. Verify that you have sufficient priveleges to start system services.
I do have sufficient priveleges. I'm running my laptop as administrator, so I know I have those priveleges. Been looking at some of the suggestions here and am a bit leary of uninstalling everything from Apple after reading Bakotown's post. So I am now sitting here with no iTunes on my laptop and no way to access my library at all.
Kind of frustrated here, Apple!!! So I think I'm gonna shut this thing down, go upstairs where it's warm and play Sims for a while.
Running Windows 7 by the way...