At 06:27 PM 5/01/2009, you wrote:
>Where can I get source code of one IBO example how to make multiuser
>database access...I need link or something?I work on Delphi 5...

Any of the projects in the Samples folder of your IBO installation will do.

If you are doing 2-tier client server, one instance of your client application
gives its user access to one or more databases. If you have more than one user
using instances of your application (or other applications), then it is
multi-user. You don't do anything in particular in your client application to
make that possible....it is what Firebird/InterBase were designed for.

The database server itself takes care of the multi-user issues. In your
application, just take good care to manage your transactions properly and
everything "just works".

Helen