>> What's the best way of "downgrading" database from Firebird 2 to Firebird
>> 1.5? It turns out my application has way too many incompatibilities with
>> FB2
>> so I need to move the data back to FB15. But apparently I can't use GBAK,
>> because 1.5 GBAK complains that it wants a backup version 1,2 or 3 and I
>> am
>> giving it a 7.
>
> Use the V2 server and the V1.5 gbak. That will produce a backup
> in the right format.

Thanks, this solution works - somewhat. It turns out that a conversion
through GBAK damaged about a half of my triggers and procedures, so in the
end I had to write a tiny application which SELECTed all data from FB2
database and INSERTed it in FB15 one.

Pepak