Allowing multiple connections
It is possible to allow multiple connection requests from a single application/thread to the same session as long as it is using the same HLLAPI Short Name Session Identifier.
In order for BlueZone to not return an error, the Allow Multiple Simultaneous Connections check box must be enabled in the API Properties window.
Refer to BlueZone Display and Printer Help for more information on configuring BlueZone to work with HLLAPI applications.