DOS Protected Mode Interface
(DPMI) The method which
Microsoft prescribes for a
DOS program to access
extended memory under a
multitasking environment, e.g.
Microsoft Windows.
This service is provided by the HIMEM.SYS driver on
IBM PCs.
The DPMI specification was finalized in 1990.
The specification itself is available from
Intel Literature Sales.
VCPI (Virtual Control Program Interface), which was an alternative, and incompatible method for doing the same thing.
["Windows 3.1 Secrets", Brian Livingston, 1992, ISBN 1-878058-43-6, pages 280-281 and 302].
