browser – How can I run a 90’s DOS application online?

I am teaching a class on a very obscure subject and I’ve been given a piece of old software that can help a great deal, under the restriction that I am not to hand it to others.

Currently I am running it on DosBox with automatic folder mount instructions prewritten; but I’ve got to do this every semester for ~100 computers and erase them after the semester is over.

So to save me the trouble I decided to look into running it online (maybe from my hostkoala hosting perhaps), but I don’t know how? How can I make this application run.

There must be a better way!