VirtualBox

Creating a MS-DOS Virtual PC under Virtualbox

https://mylinuxramblings.wordpress.com/2010/12/05/linux-mint-debian-edition-lmde-first-impressions/

FreeDOS

http://sourceforge.net/apps/mediawiki/freedos/index.php?title=Main_Page

Runnins DOS-programs on VirtualBox

https://forums.virtualbox.org/viewtopic.php?f=4&t=60699