Date: Mon, 27 Mar 2000 06:17:50 +0500 Message-Id: <200003270117.GAA00822@midpec.com> From: tr AT midpec DOT com (Prashant TR) To: djgpp AT delorie DOT com In-reply-to: <38de0287$0$82788@SSP1NO17.highway.telekom.at> (dos.fire@aon.at) Subject: Re: VCPI References: <38de0287$0$82788 AT SSP1NO17 DOT highway DOT telekom DOT at> Reply-To: djgpp AT delorie DOT com Errors-To: dj-admin AT delorie DOT com X-Mailing-List: djgpp AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk "Florian X" proclaimed: > What is VCPI? I think something like a DOS extender? Close. But it's not a DOS extender, it is something like DPMI. It provides some functions (ex: to allocate 4K pages) for the user programs. But unlike in DPMI where you have to run at the PL granted by the host, in VCPI you can run at any PL that you like (even PL0) [PL = Privilege level]. Have a look at INT 67H in the Ralf Brown's interrupt list. VCPI calls are mentioned there.