VirtualBox is a must-have open source virtualization solution for any admin seeking to run guest OSes on Windows, Linux, Macintosh, or Solaris machines.
Using VirtualBox, admins can run virtual instances of a wide array of operating systems, including Windows, Linux, OpenSolaris, OS/2, OpenBSD, and even DOS. To learn more about the extent to which VirtualBox supports various operating systems as virtual machines, check out .
Download: www.virtualbox.org