> When I refer to extra copies of fbserver.exe, I mean that if you look
> at the running tasks, there are often several instances of
> fbserver.exe running simultaneously - that is, 'something' has
> started fbserver multiple times. It is installed as a SYSTEM SERVICE
> so why the Service Manager thinks it needs to restart is a mystery.
>
> When this occurs, if a user has logged-off, they can't log back on
> until the 'extra' instances of fbserver have been manually
> terminated. Users who have not logged off retain their connections
> OK. Clearly the extra running copies block access to the port.
>
> So 'something' is starting fbserver but so far, I can't see what is
> doing it.

When this occurs, download and run Sysinternals' Process Explorer. It
will show you three things which may help you:

1. Complete path to an executable. That way you'll know if you are
seeing two instances of the same Firebird or perhaps Firebird X and
Firebird Y running at the same time.

2) Complete command-line used to run the program.

3) Execution tree (who started which program).

Pepak