More iTunes installation issues

So I'm trying to reinstall iTunes and I'm having a lot of problems with it.

All the support sites for the software point back to eachother. Here's what the error message is that I'm getting.

http://img.photobucket.com/albums/v74/enflamedphoenix/1.png

So I googled that and saw that it's an issue with installshield. So I go to the installshield site at http://consumer.installshield.com/kb.asp?id=Q110641 and see how to fix the problem. So I go to the place where you fix the problem and follow the instructions at http://consumer.installshield.com/kb.asp?id=Q108322.

Ironically enough, that causes the original error again. After the first error in iTunes shows up, I get this error: http://img.photobucket.com/albums/v74/enflamedphoenix/2.png

I've uninstalled iTunes and Quicktime. I've used spybot and adaware and antivir to check for spyware or viruses. I've registered files per the installshield website. I've used Windows Installer to delete any quicktime or itunes installer files. I just can't seem to get it to work. I don't know what else to do. I would like to be able to use my ipod haha

If anyone has any advice for me to try?

 

no one?

 

Hi this is my first post to a forum and I hope that I have understood the rules.
I recently updated iTunes to 11.1 and found that the installer wouldn't install and I got error messages.
Having battled with trying to re- install iTunes after uninstalling it and attempting a clean install, I have gotten nowhere. I have spent weeks on this and am finally at the point of despair.

The error I seem to get is the following: Error writing to file. C:\ProgramData\188F1432-103A-4ffb-80F1-36B633C5C9E1\x86\DIFxAPI.dll. Verify that you have access to that directory.


I have tried to slim down the installation and only install iTunes.msi, yet I still get the same error message. I have used Dll file fixer and a registry repair. each of these reports that there are no errors or fixes the few it finds. I run the installation again and it fails.


I have a Dell XPS 710 with Windows 7 installed 32 bit.

I would appreciate some help to resolve this.
Thanks