--- In firebird-support@yahoogroups.com, Thomas Steinmaurer <ts@...> wrote:

>
> > I am using Firebird 2.5.1 embedded on a Windows 7 machine. Due to its superclassic architecture, it is normally possible to have many simultaneous connections from different applications to the same database.
> > There is also an apache 2.2 server running on the same machine, but it can't connect to the database when any other application is already connected... as far as I can remember, this used to work fine on XP, so I suspect something of Win7's security features kicks in here.
> > I tried to run the apache server using my own account, but it didn't help.
> > Could anyone give some advice or at least explain what exactly is happening here?
>
> If this is a mix of embedded and regular server connections, then be
> aware that you can't mix 32-bit and 64-bit embedded and regular server
> connections to the same database.
>
>
>
> --
> With regards,
> Thomas Steinmaurer

No, this is only embedded on a 32-bit system.
I guess there is something different in the context of the dll run interactively and by the apache server (even under the same user account).