Int 13 Fn 5342  - Scanboot - Installation Check                            [v]

   AX = 5342h ("SB")
   CX = 0001h
   DX = 0000h

Return: CF clear if ScanBoot installed
      AX = 0000h
      CX = serial number ("SW" if shareware release)
      DX = version
      BX,SI,ES destroyed
Program: ScanBoot is a virus-detection TSR by PanSoft