An Acronym for DOS ProtectedMode? Interface.
DPMI is a programming interface from MicrosoftCorporation that allows a DOS-extended program to run cooperatively under Windows 3.x. XMS, VCPI and DPMI all deal with extended memory. However, XMS allows data and programs to be stored in and retrieved from extended memory, whereas VCPI and DPMI allow programs to "run" in extended memory.
One page links to DPMI:
DPMI