forking in QT

Hello

There's a portable way of forking for Linux,Unix or MS Windows?

I wouldn't for a Qt app if I were you... But if you really have to, you'll need platform dependent means. As far as I know there is no concept of forking in Windows - you'll need to spawn a new process there.

so, how can a new process is created in QT? isn't there something like fork()?

See QProcess.