INT 31 P - DPMIsee DOS Protected-Mode Interface 0.9+ - UNLOCK LINEAR REGION AX = 0601h BX:CX = starting linear address SI:DI = size of region in bytes Return: CF clear if successful CF set on error none of the memory is unlocked AX = error code (DPMIsee DOS Protected-Mode Interface 1.0+) (8002h,8025h) (see #03143) Notes: pages at beginning and end will be unlocked if the region overlaps them memory whose lock count has not reached zero remains locked SeeAlso: AX=0005h,AX=0600h,INT 21/AX=251Bh,INT 21/AX=EB07h