It is possible to have multiple instances of QWS3270 running and connected to different hosts. To connect to an instance of the application using QWS3270 Automation you need a method to identify the instances. This is done with 'Session IDs'. Each instance of QWS3270 can be assigned a session ID. Session IDs must be unique. This session ID is assigned to sessions in the QWS3270 application.
...
QWS3270 Automation copyright © Jolly Giant Software Inc. All rights reserved.