okey dude this was the same problem i faced and i was piss off...

then i searched and found Libusb win32 or 64 depends on your installed operationg system...

and secondly i was confeusing for me when they wrote in the flash instruction that not to restart...

yes u don't have to restart and both emm and firmware will not start automatically even if u type -R in the comand line...

the solution for your question is download lib usb for eithe windows xp or 7 there is the link

http://www.libusb.org/

all u have to do is install the driver through libusb...

let me know it u wana know any thing else...