I managed it by using isql.exe with fbembed.dll to connect to security.fdb.

>
>
> In order to allow normal users to change their passwords I
> tried out to patch the security.fdb.
>
> >>> http://www.volny.cz/iprenosil/interbase/isc4_hide.sql.txt
>
> But the script failed at DROP TABLE USERS with a
> message similar "table in use"
>
> How do I avoid this error?
>
>
> Regards
> Guenther
>
>
>
>
>
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