Struc   FMS_Area
  Request               DB    CMD_ACCESS_READ           ; Open input/output/i-o/extend/scratch
                                                        ; Access read/write/rewerite/delete
  Disk_Handler          DW    ?                         ; Disk Handler
  Path_Address_Hi       DW    ?                         ; Path Address HIGH
  Path_Address_Lo       DW    ?                         ; Path Address LOW
  Data_Address_Hi       DW    ?                         ; Data Address HIGH
  Data_Address_Lo       DW    ?                         ; Data Address LOW
  Record_Nr             DW    ?                         ; Record number to read/write
  Offset                DW    ?                         ; Records start after this nr of bytes (offset)
  Record_Size           DW    ?                         ; Maximum record size is 2048
  Status                DW    NULL                      ; File Status
ends