virtualbox.org

After installing VB on a host, is there some way to see what specific version / host the install was for? For example, it would say either of the following?
Ubuntu 11.10 ("Oneiric Ocelot") i386 | AMD64
or
Ubuntu 11.04 ("Natty Narwhal") i386 | AMD64

What is the name of the install file? That has the answer you are looking for.

And where did you get it from? Downloaded manually, or set up the repository to install it through your package manager?