[a little OT] a lot of pythonw.exe processes (Windows)

[..:: sjf ::..]

Hi all,

During running IDLE (in Windows) there are a lot of pythonw.exe processes in
my Task Manager.
Maybe IDLE starts a new pythonw.exe process every time when I run the
program? But why doesn't IDLE finish every such process correctly? So why it
starts (if any) new processes at all?

Best regards