INT 31 P - DPMIsee DOS Protected-Mode Interface 0.9+ - FREE DOS MEMORY BLOCK AX = 0101h DX = selector of block Return: CF set if successful CF set on error AX = DOS error code (07h,09h) (see #01680 at INT 21/AH=59h/BX=0000h) Notes: all descriptors allocated for the block are automatically freed DPMIsee DOS Protected-Mode Interface 1.0+ automatically zeros any segment registers containing a selector freed by this function not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0100h,AX=0102h,AX=0502h