Category: DOS extenders
Flags: available only in protected mode

INT 31 - DPMI 1.0+ - FREE SERIALIZATION ON SHARED MEMORY

	AX = 0D03h
	SI:DI = shared memory block handle
	DX = flags
	    bit 0: release shared serialization rather than exclusive serialztn
	    bit 1: free pending serialization
	    bits 2-15 reserved (0)
Return: CF clear if successful
	CF set on error
	    AX = error code (8002h,8023h) (see #03143 at AX=0000h)
SeeAlso: AX=0D00h,AX=0D02h