INT 21 - VIRUS - "SVC 5.0" or "SVC 6.0" - INSTALLATION CHECK
AH = 84h
Return: DX = 1990h if resident
BH = version number (major in high nybble, minor in low)
SeeAlso: AH=89h"VIRUS"

See also: 2183

2184 - VIRUS - "SVC 5.0" or "SVC 6.0" - INSTALLATION CHECK