At 10:23 AM 4/12/2011, you wrote:

> i wouldn't like to make step back and to use 1.5 instead of 2.1.
>But if there is no other solution...
>But i have (maybe naive) one question: can i share the database with one app using fbembed and one app using firebird client (the same version in that case)?

No. Fbembed.dll in both 1.5 and 2.1 uses Superserver, which takes an exclusive lock on the database file when connected. In short, you will not be able to share the database between two servers. Your v.2.1 server could connect to the database whilst the "AT" application is disconnected; and "AT" application could connect to the database whilst your other applications were not connected via the v.2.1 server.

./heLen