Chorus Hub should not fail if multiple instances are running

[mikelothers]

This is a report on behalf of Peter Wulfing...
Currently, if multiple instances of Chorus Hub are running, it does not work. Also, it is difficult to determine that more than one instance is running without examining each person's computer.

Possible fixes:

• Chorus Hub should notify the user that multiple instances are running and allow him/her to choose which one they want to use.
• John Hatton proposed a less-expensive fix: All Chorus Hub instances should detect each other and put up a message saying that you have to turn off all but one.

[hatton]

Actually nowadays it's a service (at least on Windows) so I don't know if it's difficult to put up UI? If the client apps could detect the situation, they could give the notice instead.

[wasta-mxb]

It being a service which survives re-boot and having no UI is perhaps a problem. Un-sophisticated users have no idea it is running, or how to turn it off. Having the clients detect it is one option, but there are at least three (PText, FLEx and WeSay) which would have to be modified to be sensitive to this.
A simple ON/OFF switch would be preferable, even if this was a separate program.