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Subject:	Re: win98 support termination doesn't effect dos
Date:	19 Dec 2003 01:05:27 -0800
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Eli Zaretskii <eliz AT elta DOT co DOT il> wrote in message news:<uhe02y4qq DOT fsf AT elta DOT co DOT il>...
> > Date: Sun, 14 Dec 2003 16:36:43 -0500 (EST)
> > From: Jude DaShiell <jdashiel AT shellworld DOT net>
> > 
> > Every version of windows I've ever used has had a dos core.
> 
> That's not true anymore for the versions of Windows that are
> descendants of the NT family: Windows NT, Windows 2000, and Windows
> XP.  (I'm guessing that all the future versions of Windows will be
> derived from the same family as well.)
> 
> The NT family is a complete 32-bit OS written from grounds up, not a
> superset of DOS as Windows 3.x and 9x were.  To support DOS programs,
> NT has a DOS _emulator_ (a.k.a. NTVDM, the NT Virtual DOS Machine),
> which is just another NT program.

IIRC this kicked off with NT 3.1 so it's been a long time coming!  OS2
2.1 was better though!

I think future versions of windows are moving toward 64bit machines
and slowly toward the depreciation of Win32API in favor of .NET
framework.   To be backward compatible a version 10 years hence will
need to do a lot of emulating (but then the CPU will be so fast too)

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