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AX = BFDEh BX = 0005h CX = new value for ???
Return:
BX = 0000h (success) AX = old value of ??? DS:SI -> ??? (if AX nonzero on return) ES:DI -> ??? (if AX zero on return)
Note: Called by DOS4GW.EXE
See Also: AX=BFDEh/BX=0000h
Category: DOS Extenders - Int 15h - D

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