INT 2F - F-PROT v2.x - ???                                                      
	AX = 4653h ('FS')
	CX = 0008h
	???
Return: ???
Note:	called by F-PROT v2.x VIRSTOP
                                                                                

INT 2F - F-PROT v2.x - VIRSTOP - INSTALLATION CHECK                             
	AX = 4653h ('FS')
	CX = 0008h
Return: AX = 5346h if installed
	    BX = version???
	    DS:SI -> ASCIZA NUL-terminated ASCII string.	The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h.  Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. name of file containing 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. signatures
	    DS:DI -> 80-byte buffer for ???