INT 21 - VIRUS - "Diamond-A", "Diamond-B" - INSTALLATION CHECK
AX = D5AAh
Return: AX = 2A55h if "Diamond-A" resident
AX = 2A03h if "Diamond-B"-family virus resident
SeeAlso: AH=D5h"VIRUS",AX=D5AAh/BP=DEAAh

See also: 21D000

21D5AA - VIRUS - "Diamond-A", "Diamond-B" - INSTALLATION CHECK