vDos / Discussion / Printing: Problems with Epson FX-870
foone on Twitter: "Apparently it was open source prior to 2015, but is now closed source and semi-freeware. It's freeware unless your computer is on a (windows) network, then it's nagware. https://t.co/QJXUtGa51N" /
How to print from vDosPlus (or vDos / DOSBox) - YouTube