Browser DOS Environment

Load a DOS program you own.

Local ZIP loader

LOCAL DOS PROGRAM LOADER Choose one ZIP archive from this device.

PROGRAMS FOUND

STARTING DOS ENVIRONMENT…

CLICK SCREEN TO CAPTURE MOUSE · ESC TO RELEASE

Your ZIP is processed locally in your browser. Nothing is uploaded.

No DOS software is provided by this site. Use software you are authorized to use.

Save data written to the game drive is kept in this browser and restored for the same ZIP.

Session limits: detecting this device…

Open-source notices

PC emulation uses BSD-2-Clause v86 0.5.441. OPL2/OPL3 synthesis uses BSD-3-Clause ymfm. SeaBIOS firmware is LGPL-3.0. The isolated FreeDOS 1.4 guest contains GPL-2.0 FreeDOS kernel 2043, FreeCOM 0.86a and CuteMouse 2.1b4, plus Artistic-licensed JEMM 5.85. ZIP extraction uses MIT-licensed fflate 0.8.3.

v86 source · v86 source archive · v86 license · v86 checksums · v86 OPL bus patch · v86 keyboard patch · v86 PS/2 mouse patch · ymfm source information · ymfm license · ymfm checksums · SeaBIOS notice · SeaBIOS license · GPL-3.0 terms · SeaBIOS source · FreeDOS manifest · FreeDOS source information · FreeDOS checksums · guest build script · FDCONFIG.SYS · FDAUTO.BAT · drive-alias source · drive-alias scope · drive-alias build script · drive-alias checksums · kernel license · FreeCOM license · JEMM license · CuteMouse license · kernel source · FreeCOM source · JEMM source · CuteMouse source · fflate source · fflate license · fflate checksums