virtual usb double instance

Hi,

I successfully created a VusbBus installation of 2 Sent Ultr-pro keys ,
the problem is that Virtual Usb permits them to work one at a time_
(to switch from one dongle-protected software to the other I have to reboot..);

I tried making a second instance of VusbBus (running it twice and changing the Service/ name in Registry.. from ru-board/mulators/  to something/else/...),
but changing the name in registry makes VirtualUsb not work;

I tried to look inside VusbBUS.sys but it's machine language ,(same thing fo devcon.exe.. it comes with virtual usb)

do you think that making a second instance of VUSbus could be a solution in this case?
does somebody know how to do this?

Very simple use 2 drivers with different name and registry path.
If u can't do it send to me and I help u.