5.1.2. Converting infobases for use in client/server mode
To convert an infobase from file to client/server mode, export/import it to a file.
IMPORTANT. Before you import or export an infobase, make sure all sessions using this infobase are closed.
You need to export an infobase by clicking Administration – Export infobase. Then create an empty infobase in client/server mode. Open the infobase in Designer and import it by clicking Administration – Import infobase).