Virtual PC and Device

VirtualBox 3.28-64453 Final Portable is a portable version of VirtualBox, VirtualBox is a general-purpose full virtualizer for x86 hardware. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source Software. 

VirtualBox 3.2.4.62431 - VirtualBox is a powerful x86 virtualization product 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).

VirtualBox 3.2.0.61806 Final - VirtualBox is a powerful x86 virtualization product for enterprise as well as home use. VirtualBox 3.2.0.61806 Final is freely available as Open Source Software under the terms of the GNU General Public License (GPL).

VirtualBox 3.2.0.61317 Beta 2 - Free powerful x86 virtualization product for enterprise as well as home use. VirtualBox 3.2.0.61317 Beta 2 runs on Windows, Linux, Macintosh and OpenSolaris hosts and supports a large number of guest operating systems including but not limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista, Windows 7), DOS/Windows 3.x, Linux (2.4 and 2.6), Solaris and OpenSolaris, and OpenBSD.