And for reference, if you go to the control panel in Windows 7, "Uninstall a program" is right there on the bottom left. If you want to install a program (like IIS), clicking "Programs" takes you to a convenient menu that lets you "Turn Windows features on or off".
It's not quite how it was, but it's actually more intuitive. I'd imagine that you learned the old way of doing it by trial and error. The new system makes that process easier.