I hope this isn't too far off-topic for a DOSBox forum.
I have a load of old DOS programs that run in basic VGA mode, 640x480, 16 colours, using BIOS video mode 0x12. If I run one of these under DOSBox it changes to an emulated 640x480 graphics display inside of a window, just as I would like it. However, I need to be able to run the programs outside of the DOSBox sandbox environment to keep things simple.
I have set up a command box under Windows XP or Windows 7 (it might work in 8 or 10, I don't know) running FreeDOS, and my old DOS programs using text mode screens up to 80x50 characters seem to work fine, but when I try to run in VGA mode either it forces me into full screen mode (Windows XP) or refuses the video mode change altogether (Windows 7).
What I need is a free-standing version of something like the VGA 640x480 emulator from DOSBox, that can run in a normal command line window.
Does anyone know of a free-standing emulator that can do this, either the one used by DOSBox itself or something similar? Something which can run as a TSR under FreeDOS, trapping video mode 0x12, would be ideal.