INT 21 - VIRUS - "Durban" - INSTALLATION CHECK
	AH = DEh
Return: AH = DFh if resident
SeeAlso: AX=DAFEh,AX=DDEFh,AH=DEh"April 1st",AX=DEADh"90210"
                                                                                

INT 21 - VIRUS - "April 1st EXE" - ??? 
	AH = DEh
	???
Return: ???
SeeAlso: AH=DEh"Durban",AX=DEADh"90210"