Dioscuri - the modular emulator

"Dioscuri is an x86 computer hardware emulator written in Java. It is designed by the digital preservation community to ensure documents and programs from the past can still be accessed in the future. Dioscuri version 0.2.0 is out now This release is capable of running various versions of MS-DOS, FreeDOS 0.9 Beta (included in package) and ELKS (Embeddable Linux Kernel Subset)"