NoSpam@[EMAIL PROTECTED]
(Bob Masta) wrote:
>
>As far as I know, Win9x doesn't block I/O accesses at all, even in
>normal Windows mode.
Correct. In fact, it could NOT do so, in part because display drivers in
Win9X were just ordinary user-mode DLLs. They had to be able to do ****t
I/O.
>On the other hand, WinNT, XP, and later require
>a special Ring0 device driver to grant access to Ring3 programs. That
>includes DOS box operation as well, I believe.
Correct.
--
Tim Roberts, timr@[EMAIL PROTECTED]
& Boekelheide, Inc.
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