Binary package “virtualbox-guest-utils” in ubuntu precise

x86 virtualization solution - non-X11 guest utilities

 VirtualBox is a free x86 virtualization solution allowing a wide range
 of x86 operating systems such as Windows, DOS, BSD or Linux to run on a
 Linux system.
 .
 This package provides the non-X11 guest utilities for VirtualBox. These
 utilities are meant to be run inside the virtual machine.
 They provide closer integration and allow to share data through shared folders
 between the host system and the virtual machine.