invalid usb device

[pansoul]

hello
I would like to monitor the signal of a usb midi keyboard but, as the driver is not intalled, the keyboard  is shown as an invalid usb device so i can't start the monitoring.
but isn't it the purpose of advanced USB Port monitor to show what are the raw data on the port even without driver ? is there a way to monitor the data in the usb ?
thanks

[Arthur Grasin]

Our software relies on an USB base driver of Windows. If this driver can't communicate with this device, then our software can't do it too.