(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 PC s.
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].
(1995-01-12)