Int 16 Fn FA02  U - Pc Tools V8+ Vsafe, Vwatch - Get/set Options           [v]

   AX = FA02h
   DX = 5945h
   BL = new parameter flags (see #0540)

Return: CF clear
   DI = 4559h
   CL = old value of parameter flags

Bitfields for VSAFE/VWATCH parameter flags:
Bit(s) Description (Table 0540)
 7 Protect executable files
 6 Protect FD boot sector
 5 Protect HD boot sector
 4 Boot sector viruses
 3 Check executable files
 2 General write protect
 1 Resident
 0 HD Low level format