I guess then my safest bet will be to use the embedded and if for some
reason there's a problem, make the setup with the full server
installation.
Thanks again for your help.

> Embedded runs literally inside your application. You do not have to
> worry about any other instances of Firebird at all UNLESS you decide to
> use super server or classic server instead. Embedded will not interfere
> with any other installed firebird instance, they will not see each
> other.
>
> Adam