I have one drive where all my programs go. I install everything to it's own folder, on the root of that drive. I have no problems and my life is light and carefree ;o)...lol. I don't worry about  UAC because I'm religious about scanning for nasties and I don't engage in risky internet behavior. I know that's not a guarantee that nothing bad will creep in, but it sure helps. And it's been working for me for years.

Laurie