Why is it that iTunes doesn’t need to restart your computer when installing on Windows Vista, but needs to restart after updating to the newest version?

And in addition to that, why is there no “Rescan library” option in iTunes?

I have always had problems with the default, bloated music player solutions (iTunes, Windows Media Player, and others), but the others (Media Player Classic, VLC, etc.) don’t really allow me to do what I want to do with ease.

And one more complaint. Why are there massive files left over from the installation and updates of iTunes that aren’t deleted? We’re talking 80mb from installing iTunes and updating it once. Wow. Bloated software that leaves your hard drive bloated.