VirtualBox is a virtual machine manager created by Sun Microsystems (purchased by Oracle). Users create virtual machines using VirtualBox. On each virtual machine, you can install any operating system that runs on the x86 processor architecture. In particular, you can install DOS 6.22. DOS 6.22 is a legacy, proprietary operating system released by Microsoft in 1994. For that purpose, you can use an ISO file with the contents of the DOS 6.22 distribution CD; you will need a software license from Microsoft to acquire such an ISO file. Writer Bio
