> OK, so you have gotten past the authentication issue and now you have
> a problem with file access.
>
> Try to provide more information about what you have set up there, and
> how you went about installing it. For example, if you are running
> Superserver (fbserver.exe) and you have some application reading the
> database file with read/write access, then Superserver cannot open
> it, because it requires an exclusive write lock.
>
> ./heLen
>

Hi,
thanks to u also (as I already thanked another user for his answer).
Just I found out much easier to work with firebird database through a
delphi component (IBO) that allows me to connect and make many
operations on the firebird database.
Regards