Hi Grzesiek,

> ...
> int w = DB->Characteristics.dbServer_Major_Version; => throw
> exception

If you can (I've not used BCB2007, it is a long time since I
have used BCB at all) try placing a breakpoint inside
TIB_Connection.GetCharacterstics (around line 17140 of
IB_Components.pas). See if that helps you track down what is
wrong.

GetCharacteristics should be called as part of
int w = DB->Characteristics.dbServer_Major_Version;
and so the above may help you isolate get to the detail of
the problem.

I dont know why the IDE should show the structure if the
executable cannot... it is a "packed record", so I wonder if
there is some issue with the way you are linked to the IBO
function (is it a DLL/BPL and if so is the executable built
with the same alignment etc).

--
Geoff Worboys
Telesis Computing