INT 31 - DPMI 1.0+ - FREE SHARED MEMORY AX = 0D01h SI:DI = shared memory block handle Return: CF clear if successful CF set on error AX = error code (8023h) (see #03143) Notes: handle becomes invalid after this call DPMI maintains separate global and virtual machine use counts for each shared memory block; when the global use counts reaches zero, the block is finally destroyed SeeAlso: AX=0502h,AX=0D00h