I am using jitsi. I noticed, that if I terminate the application
(File>Quit), the process (run.exe) is not terminated properly and
keeps running in taskmanager. It prevents to start the application
When I try to run the jitsi after this, it won't start
(%USERPROFILE%\AppData\Roaming\Jitsi\.lock file exists).
When .lock file is deleted, then it is possible to start jitsi again,
but the another run.exe process appears.
It is also possible to kill the process and then it starts normally as well.
I observed this behavior in latest stable version and it is still
present in latest nightly build (1.1.4285.10000)