Int 16/AX=FFF1h/BX=0000h

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PC Tools v5.1-8.0 DESKTOP - ALTERNATE INSTALLATION CHECK

AX = FFF1h
BX = 0000h  leave ??? flag as is
nonzero set ??? flag

Return:
CX = 5555h if installed DX = 5555h

Category: Resident Utilities - Int 16h - P

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