The Virtualbox is free virtualization software that can be used by companies, but also at home. The software was primarily used by a German company, but it has been modified greatly since its modest beginnings, because everyone is invited to help and contribute, because it is open software product. The software can be downloaded freely and easily. The Virtualbox is great professional tool and can be used in commercial purposes, such as businesses and corporation, due to its high performances and reliability. Home users are very satisfied with the performances of this software package, due to its simplicity and stability. The software runs on virtually all known operating systems, such as Windows (all versions of the Windows operating system), Macintosh, Solaris, Linux, OpenBSD, OS/2, OpenSolaris etc. One of the main advantages of the Virtualbox virtualization software is the option of hosting many guest applications and operating systems. Simply put, the software can be used to run a virtual operating system on your machine, parallel to your existing operating system, for the purpose of different types of tests. Since the software is open source, you can easily find the Virtualbox user manual online, providing detailed information on its installation and performances. In addition, there are many web sites where you can find useful reviews and comments of users which will surely be helpful for you. DOWNLOAD VIRTUALBOX USER MANUAL HERE