Hi Martijn,

> > conn.Open;
>
> What happens if you only synchronize the Open?

Same problem, no changes. And changing localhost to my server name has
no effect either.

And I have a try except block arround the method and log the
exceptions to a file. Sometimes there are exceptions (always in unit
SqlExpr.pas), sometimes the application is killed without. Exceptions
apear at random places.

But it could be that the problem was something else. I used version
dbxup_fb.dll version 1.0.6 (October 2003). I replaced it with the
latest version (1.3.0.0) and it looks, like the problem is gone. I
have to test further with my full code. But maybe you can confirm,
that this could have influence to the problem.

cu Christian