VirtualBox's main rivals for virtualization on the desktop are commercial products like VMware Workstation (which runs on Windows or Linux), VMWare Fusion 3 ($79.99 direct, ), which runs on OS X, Parallels Desktop (which runs on OS X or Windows), and the free but commercial Microsoft Virtual PC and Windows Virtual PC, which run only on Windows. Although VNC isn't included in the proprietary VirtualBox version, expert users can easily add free VNC software to a Windows system running the proprietary version and get the same VNC capabilities built into the Open Source Edition. The open-source version, called VirtualBox Open Source Edition (OSE) lacks the ability to use USB peripherals, and includes the open-source VNC protocol instead of Microsoft's RDP. This version includes the ability to use USB peripherals in your virtual machines, and it lets you connect to a virtual machine through the Remote Desktop Protocol (RDP) this is built into Windows is also available for Linux. You'll probably want the partly proprietary version, simply called VirtualBox. The Windows, Linux, and OS X versions are available in two different forms, one partly proprietary, one fully open-source. All these versions can create virtual machines based on any of dozens of different operating systems, including Windows, Linux, OS X server, OS/2, DOS, and others that you've probably never heard of. Oracle VM VirtualBox is available in versions that run on Windows, Linux, or OS X. This would let test the way an application or website works on a half-dozen other operating systems without leaving your own machine. If you're a power user or developer, you can run software in a Windows XP virtual machine that won't run on your actual Windows 7 system. These virtual machines (VMs) have lots of advantages.

You could, for example, have a complete virtual Linux system running in a window inside your Windows 7 computer, or you might have a complete Windows XP system running in a window inside a Linux or OS X or Windows 7 system. Virtualization is a big word that means, more or less, running one computer system inside another system. It's not the best or easiest to use virtualization option out there, but if you don't mind tinkering or don't have any room in your budget for virtualization, it's a solid choice. Oracle VM VirtualBox is the most advanced free desktop-based virtualization utility and the most advanced open-source version virtualization software, too. Best Malware Removal and Protection Software.

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