(form "00462" (size 78  5)
  (help "00462_TIP_0")
  (heading "EXECUTE AN OPERATING SYSTEM COMMAND")
  (label (position  2  3) (text "Command"))
  (field "os_cmd" (position 12  3) (display_length 64) (input allowed)
    (null allowed) (max_length 64)
    (file (extension "*.*")))
  (default_buttons)
)