Tomy,

> Hi all,
>
> I am developing a .NET application using embedded firebird. I wonder
> that sometimes I can open firebird (using IBExpert) while the
> application is running. As I read in firebird manual, embedded database
> can not be opened while the application that using the connection on
> that database is running. I noticed that there is 'virtual database'
> created elsewhere outside my application.
>

The database file is locked by embedded version, so if you can open it
with IBExpert at the same time, your application is not connected to the
database at the same time.
(You have the application open, but no connection is established)

Artur