INT 21 - VIRUS???                                                               
	AH = 4Ah
	BX = 00B6h
	ES = CX
Return: ???
Note:	this call is intercepted by the Search&Destroy SDRes v27.03 bundled
	  with Novell DOS 7, and is presumably some virusA program which attaches itself to other programs for the purpose of duplicating itself.	Viruses often (but not always) contain harmful code which is triggered by some event, after a certain number of reproductions, or on a specific date.  See also worm.'s installation check
SeeAlso: AH=0Eh/DL=ADh,AH=4Ah/BX=FFFFh,AH=D2h"VIRUS"