Trying to reinstall iTunes and get Error 7 and Error 7 (Windows error 193) after uninstalling iTunes and all components.

I have tried to install iTunes on my Toshiba Satellite A505-56005. I have uninstalled all the components as suggested.

1. iTunes
2. Apple Software Update
3. Apple Mobile Device Support
4. Bonjour
5. Apple Application Support (iTunes 9 or later)
   On some systems, iTunes might install two versions of Apple Application Support. This is expected. If both are present, be sure to uninstall both versions.

I have received Error 7 and Error Message 7 (Windows error 193. I have Microsoft Windows 7 Home Premium. Can someone help me, pretty please?!