VirtualBox 4.2.6 x86 Mac OSX | 109 MBVirtualBox
is a family of powerful x86 virtualization products for enterprise as well as home use. Not only is VirtualBox
an extremely feature rich, high performance product for enterprise customers,it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL).
runs on Windows, Linux and Mac hosts and supports a large number of guest operating systems including but not limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista), DOS/Windows 3.x, Linux (2.4 and 2.6), and OpenBSD.