JsDOSBox is a JavaScript port of jDosbox (https://sourceforge.net/projects/jdosbox/) which is itself a port of DOSBox (http://www.sourceforge.net/projects/dosbox).
Demonstration of JsDOSBox at
http://jsdosbox.sourceforge.net
Running a game demo at http://jsdosbox.appspot.com (Chrome recommended).
And running DOS demos at http://retropcdemos.appspot.com.
See website link below for details on recent changes and instructions.
http://sourceforge.net/p/jsdosbox/home/Home/
NOTE: This is the old Swing version. The current version of Jace can be found here: https://github.com/badvision/jace
Because of malware injections in other Sourceforge projects, the author has removed all binaries from Sourceforge. You may look at the legacy source still hosted here but are highly encouraged to check out the new version hosted in Github for recent updates on this project.
Thank you for your interest in this project!
][ Infinitum!