MS-DOS 6.22 is more compatible then dosbox. Dosbox does not have all details of the internals of MS-DOS 6.22. Dosbox and FreeDOS could become better if them would know it.
The simple question is, is it more easy to make an emulator for an old operating system if you know it`s source code or is it harded without the source code. And does it hurt if the source code is available for reference?
I see no disadventage for normal users if the source code would be released. (Someone could argue that crackers may find new exploits but this would be kinda stupid because the OS are not supported since many years and exploits won`t get patched so or so.)
As for closed source drivers and closed source hardware sure it would be even better if them would become Open Source also. Isn`t a bad idea to expand this petition to this requirement.
Some modern graphic cards by AMD have an Open Source graphic driver and AMD also has given out internal details about the card to make this driver even better. So in case of those very old hardware it`s just a matter of asking any details which are currently now not well known.
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