Add/remove components without having to uninstall

[Blythium]

It would be nice if I could use the installer to add/remove VirtualBox components, i.e. change the options I choose when I installed VirtualBox the first time. E.g. I installed VirtualBox without the additional network components, and if I want to add them I have to uninstall VB then re-install it. It would be better if I could just run the installer once, and change the options.