(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].