Development seems to have gone a bit sideways, since USB detection does not work properly anymore.
I tryed with and without USB 3.0 script.
I tryed with all 3 hotplug tools nowadays included. None worked properly.
Having a USB-Stick attached during boot is not recognized by any.
Attaching a USB-Stick after boot is not detected by all, also Explorer view isn't refreshed.
No autostart menu opens, when a USB-Stick is inserted.
Even after refreshing the Explorer to show the newly attached Stick, Windows Hotplug tool does not show anything.
Installing all Drivers fixed the Explorer issues, but did not help the Windows Hotplug tool. I think it's broken.
All of the above used to work fine last year.
PS: I did not check, if installing all drivers would benefit the other two hotplug tools.