INT 21 - VIRUS - "Ontario", "Year 1992"/"B1M92" - INSTALLATION CHECK
AX = FFFFh
Return: AX = 0000h if "Ontario" resident
AX = 07C2h (1992) if "Year 1992"/"B1M92" resident
SeeAlso: AX=FFFFh/CX=0000h,INT 6B"VIRUS"

See also: 21FF0F

21FFFF - VIRUS - "Ontario", "Year 1992"/"B1M92" - INSTALLATION CHECK