cannot install apple products on windows 7 64-bit

when registering modules while installing quicktime or itunes, an error message appears saying that a program required for the installation is missing and then the setup rolls back. So how to fix this problem?

i tried all the possible solutions provided by this thread at microsoft support but none works

http://answers.microsoft.com/en-us/windows/forum/windows_7-windows_programs/unab le-to-install-itunes-105-on-windows-7-64-bit/fe533d08-6f4b-4cfa-8c41-ddf292132fc b

i just got a new ipad and i cannot install itunes on the laptop, its so frustrating!!!