> How to configure Interbase for many users concurrent(lock) and long business
> role ?

Not sure I quite understand your problem. Interbase will
support many users out of the box. The '(lock)' probably
means you are trying to use it like other 'not so advanced'
databases. Interbase does not directly lock records, which
is why it gives such good performance. What sort of locking
are you trying to achieve?

> Is it possible ? (I hope so)

I run 100's of multiple users 24/7 without any problems (
now <g> ), so more specific information please.

--
Lester Caine
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L.S.Caine Electronic Services