Int 21 Fn FFFF  - Virus - "ontario", "year 1992"/"b1m92" - Installation C  [v]

   AX = FFFFh

Return: AX = 0000h if "Ontario" resident
   AX = 1992h if "Year 1992"/"B1M92" resident

See Also: AX=FF0Fh,AX=FFFFh/CX=0000h,INT 6B"VIRUS"