So I have both the zimage and rootfs.bin in the flasher folder. With my N9 turned on, I plugged it into the computer. Then I ran the flasher as administrator and typed the code you have above and end up with the error message. I still believe the problem is with zimage and how my computer downloads it, trying to open it with WinRar. If I can get it to download without the computer trying to open it with a program I think it would work.