Int 21 Fn 4304  U - Dr Dos 5.0-6.0 Internal - Get Encrypted Password       [O]

   AX = 4304h
   DS:DX -> ASCIZ filename
   ???

Return: CF clear if successful
       CX = AX = 0000h if no password assigned to file
   CF set on error
       AX = error code (see #1366 at AH=59h/BX=0000h)

Note:  this function is only supported by DR DOS 5.0 and 6.0 and DRMDOS 5.1

See Also: AX=4303h,AX=4305h