Latest update to iTunes does not install

Question

Installed update to iTunes today. While installing I received message "Service 'Apple Mobile Device' failed to start. Verify that you have sufficient priviledges to start system service." When I opened iTunes got  - "MSVCR80.dll not found". This was corrected and reinstall attempted. I then got message Windows error message 7 and proceded to correct via instructions at (http://support.apple.com/kb/TS3074?viewlocale=en_US&locale=en_US) After completing this, I reinstalled iTunes.
I still get the same message R6034 An application has made an attempt to load the C runtime library incorrectly. Please contact the applications support team for more information." When "OK" is clicked the box Window's 7 (1114) is opened. This leads back to correcting the .NET Framework as described above.
As of this time I have no iTunes and cannot sync with iPod or iPhone.

Answer 1

This happened to me on windows XP trying to update iTunes as well today. Here are the steps I went through to fix this. I hope it works for you as well.
I was getting the error ASPDaemon.exe missing MSVCR80.dll. If you aren't getting this, skip to the next sections. To fix this from popping up I did the following:
1. reset computer, hit F8 to restart in safe mode.
2. restore to system settings from anytime before you tried updating.
When I started the computer the error was gone but iTunes still wouldn't work. From here I did the follwoing
(Start here if you're not getting the MSCVR80.dll error)
1. Download the new iTunes from itunes.com and save it to your desktop or download folder whatever, don't install it yet.
2. Go to Start --> Control panel ---> Add or Remove programs, then remove the following programs
3. Remove iTunes
4. Romove Quicktime
5. Remove Bonjour
6. Remove Apple Application Support
7. Remove Apple Software Update
8. Remove Apple Mobile Device Support..
        I had an issue removing this because of the MSVCR80.dll error. So I clicked "change" instead of remove            and did a repair on the Apple Mobile Device Support. After it was repaired. I removed it from add/remove            programs.
9. After removing all of those I reset my computer.
10. Click the iTunes set up on your desktop or wherever you saved it and install it.
11. After it installs and loads plug in your devices (iphone ipod, etc) to makes sure they sync.
That seems to have worked for me. Hopefully this helps you and any others this has happened to.