What does the message "Failed to create a local socket: Unknown" mean?

You will get this message if you try to start two copies of Sesame Server on the same ports.

By default Sesame uses ports 20,000 and 20,001 for communication across a network.

If you need to run more than one instance of Sesame Server, you will need to specify different ports for each instance. Ports are specified in the following manner ':PortA:PortB' and immediately following the name of your Server machine.

Examples:
Sesame Server 1:
Target Path: C:\Sesame2\Program\Sesame.exe -server myserver:20000:20001

Sesame Server 2:
Target Path: C:\Sesame2\Program\Sesame.exe -server myserver:20002:20003