Int 2F/AX=4653h/CX=0003h

AX = 4653h ('FS')
CX = 0003h
BX = subfunction
0000h  installation check
Return:
AX = FFFFh
0001h  uninstall
Return:
AX,BX,ES destroyed

Program: F-XCHK is part of the shareware F-PROT virus/trojan protection package by Fridrik Skulason

See Also: AX=4653h/CX=0002h - AX=4653h/CX=0004h - AX=CA00h

Index:
Installation check;F-XCHK|uninstall;F-XCHK