OC41 - it might help to try & have a look back in the PPRuNe archives at :
"Du ty Time Programme"
That's meant to be the link to a thread started here in Flt Ops, Crewing and Dispatch by WANDERLUST posted 08 May 2000 18:46 "Looking for a simple programme to keep track of flight/duty times for a small flight dept."
Some useful background came out quite well in that discussion.
CHORES! is still available - the Crew HOurs REcording System - now been used in 11 airlines to help crewing folk avoid the miserable head-banging of manual accumulator calculation.
Send an email if you are interested further
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Best of luck
RDi
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