I am running three versions of Firebird on my development box (1.5, 2.1, and 2.5) All seems to work fine for connecting.

But cmdline utilities like GFIX are not displaying useful messages:
can't format message 3:4 -- message system code -4
can't format message 3:21 -- message system code -4
can't format message 3:25 -- message system code -4
can't format message 3:26 -- message system code -4
can't format message 3:28 -- message system code -4
can't format message 3:29 -- message system code -4
can't format message 3:30 -- message system code -4
can't format message 3:32 -- message system code -4
can't format message 3:33 -- message system code -4
can't format message 3:119 -- message system code -4
...

What do I need to do the get them to know where the firebird.msg file is, assuming that is the issue?