Finalist IMS does not have I/O (Input/Output) capabilities of its own other than its use of the Finalist master files. To facilitate the update of addresses on a file, there are exit points in the system which can call I/O routines. Call one exit point to read an address into the Windows address lookup screen. Use the other exit point to write addresses from the Windows address lookup. You can call the input exit by pressing the PF7 key from the address lookup display. You can call the output exit by pressing the PF8 key.