> I have Fixed it, but I don't know why it is so:
> I have changed the URL from
> jdbc:firebirdsql:embedded:\projekte$\FIREBIRD\DATABASES\WINDBERG_MANA
> GER.GDB

was this your original URL?

> to
> jdbc:firebirdsql:embedded:localhost:C:\\FIREBIRD\\DATABASES\\WINDBERG
> _MANAGER.GDB
> and id runs.
> Why I must set localhost?
> The explanation from nagypapi was:
> > url to your database to the following
> > "jdbc:firebirdsql:embedded:drive:/path/to/database"
> > egsample: "jdbc:firebirdsql:embedded:c:/data/sexyboy.gdb"

Most likely this has something to do with the fact that you use mapped
network drives. Firebird always had issues with such configurations.
Ask in Firebird-Support.

Roman