Int 21 Fn 1812  - Virus - "tasha Yar" - Installation Check                 [v]

   AX = 1812h

Return: AL = 00h if resident
   DX = 4310h if resident

See Also: INT 21/AX=0B56h"VIRUS",INT 21/AX=187Fh,INT 21/AX=2C2Ch"VIRUS"