From mboxrd@z Thu Jan  1 00:00:00 1970
From: Reinhard Karcher <rkarcher@frey.de>
Subject: Re: A20 Address line - XMS issue
Date: Fri, 6 Dec 2002 16:01:25 +0100
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On Fri, Dec 06, 2002 at 08:23:52PM +0530, S.Gopi wrote
> 
> May i know why is it so? If DOSEmu can allow these interrupts then 
> programs like himem.sys can use of this and provide the memory manager 
> suppor with VCPI support etc. Is there any technical difficulty or 
> memory blocking issues with this or it is disabled for some anonymous 
> reasons.
> 
As VCPI uses priveledged instructions, which are reserved for the kernel,
you can't use VCPI. DPMI is the method to use 32-bit programs.

Reinhard