I have 2 "installations" of Thunderbird Portable on two different drives - one for private & work and another for å club I'm running, all in all 17 different accounts. I would like to keep them separate, i.e. not having all of them in one instance of PTB, but when I have one instance open and try to start another, I get the message:
"Another instance of Thunderbird is already running. Please clos other instances of Thunderbird before launching Thunderbird Portable."
Is there any way to circumvent this?
Thankful for suggestions.