How to keep alive a session with a timeout

my session have a timeout of 20 minutes (it's a system setting i cannot change)
i run a program that generates a file excel that need 60 minutes to end.
i cannot run the program in background because OLE and creating excel is not supported
is there a way to avoid my session time out?
is there a way to make the sistem don't close my session while it's creating my file excel?
thanks,
Giacomo

Giacomo,
Try it.
REPORT zz_keep_alive.
CLASS lcl_trigger DEFINITION.
PUBLIC SECTION.
    METHODS: fim_timer FOR EVENT finished OF cl_gui_timer.
ENDCLASS.                    "lcl_event_handler DEFINITION
CLASS lcl_trigger IMPLEMENTATION.
METHOD fim_timer.
    cl_gui_cfw=>set_new_ok_code( new_code = 'ONLI' ). "ONLI = Executar
ENDMETHOD.                    "fim_timer
ENDCLASS.                    "lcl_event_handler IMPLEMENTATION
DATA: r_timer   TYPE REF TO cl_gui_timer.
DATA: r_trigger TYPE REF TO lcl_trigger.
PARAMETERS: p_uzeit TYPE sy-uzeit.
AT SELECTION-SCREEN OUTPUT.
p_uzeit = sy-uzeit.
CREATE OBJECT: r_timer, r_trigger.
SET HANDLER r_trigger->fim_timer FOR r_timer.
r_timer->interval = 60.
r_timer->run( ).
Hope it helps.
Rgs
Paulo Afonso Cordeiro

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