Plan6M

I downloaded the itune file, and unzipped the 7z file, tried running the setp.exe, and it wouldn't run. Any ideas? Reason i'm trying this is because i can't get itunes to open, i double click the icon and nothing. I've uninstalled it several times and same thing. I did a stand alone install of Quicktime, and it won't run either, don't know what gives. Any help would be greatly appreciated. Thanks, Plan6M