Hi,

On Tue, Sep 18, 2012 at 4:04 PM, Ralf A. Quint <free...@gmx.net> wrote:
> At 01:29 PM 9/18/2012, Rugxulo wrote:
>>
>>Again, this was purely marketing, not technical, as MS wanted to
>>exclusively bundle their DOS with Windows. With (very creaky) shims,
>>DR-DOS was said to be able to boot Win95 (and proved such in court),
>
> Where and when was that? This lawsuit was never brought to trial in
> the first place...

I don't know all the details, barely any actually. You'd have to ask
Matthias Paul, the expert. All I read was that he worked on WinBolt
(or whatever) that patched a few things that made it finally boot atop
DR-DOS.

Whether it went to trial or not, I don't know. I know there was lots
of testimony back in the day, perhaps in the monopoly /
anti-competition trial. And Caldera (or whatever was left) did receive
a big cash settlement eventually. But I'm no lawyer and don't really
actively research legal stuff, so maybe I'm somewhat confused
(probably!).

> If there were indeed technical reasons or not, Windows 9x/ME used the
> DOS it was started from just for the bootstrap process as well as in
> the command prompt window once booted. No other part of the OS is
> otherwise using any of the "underlying" DOS, it is all handled by the
> Win32 system. So Windows 9x/ME is in fact an OS in it's own right,
> just like Netware is/was an OS in it's own right, regardless of it
> being booted from DOS in the initial phase as well...

I think it still did use DOS file system calls, but I could be wrong.
DOS was not just a glorified boot loader here, it was way more
interwoven and a hard requirement for this particular OS. You really
couldn't (AFAICT) run Win95 without DOS, at least without rewriting
the whole thing. But that's beyond my understanding, so you'd have to
ask someone more technically inclined (Geoff Chappell ??).

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