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From: "infonews" <usrinfousr AT libero DOT it>
Newsgroups: comp.os.msdos.djgpp
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Subject: Re: Dos shell ,dos box ,MS-Dos ......
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Message-ID: <7Sgr8.122505$%g7.3891459@twister2.libero.it>
Date: Fri, 5 Apr 2002 14:34:18 +0200
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Organization: [Infostrada]
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

THANKS !!!! CLEAR also to me !!!
Sorry for my english .

"Hans-Bernhard Broeker" <broeker AT physik DOT rwth-aachen DOT de> ha scritto nel
messaggio news:a8jvsj$cav$1 AT nets3 DOT rz DOT RWTH-Aachen DOT DE...
> infonews <usrinfousr AT libero DOT it> wrote:
>
> > Then Djgpp environment ,Rhide (my little programs !!!) work over
> > Windows ME.  But have to be started in the dos box ( right ? ) or
> > dos shell ( right ?)  offered by Windows ME ( OK ?) that at this
> > time is the operating system.
>
> That's still a bit foggy wording you're using.  To put it more
> plainly: DJGPP programs absolutely require some version of DOS as
> their operating system.
>
> The only real difference between "raw DOS" (like what you got when you
> did a "reboot into MS-DOS mode" or used the boot menu in older Win9x
> versions, or an actual MS-DOS installation), and the "MS-DOS command
> prompt" still offered by ME is whether the machine this DOS is running
> is the actual hardware, or a simulated, so-called "virtual" machine
> provided by some other OS.
>
> In other words: as far as the DJGPP app is concerned, the Operating
> System is still DOS, not ME.  The operating system API the DJGPP app
> has access to is that of DOS.  It can not call any Windows system
> function, it can't open it's own windows, it can't talk to a Windows
> printer driver or anything.  Not unless the VM driver provided by
> Windows reflects access to them into the virtual machine as
> DOS-accessible software drivers or simulated hardware.
>
> While you're running DJGPP (or any DOS application, for that matter),
> you have *two* full operating systems running on your machine: the
> host OS (Win ME, in your case), and a special version of DOS confined
> to the inside view of a virtual machine.  The DOS application can
> access the services of only one of those (the DOS in the VM), so for
> all practical means and purposes, that one is its operating system.
>
>
>
> --
> Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
> Even if all the snow were burnt, ashes would remain.