Grand with Windows 7 Ultimate 64 bit
Literally just got this working with minimal hassle. Download the Win 7 driver package from Edimax, unpack the zip file but don't run anything yet. Install the PCI card, boot up, Win 7 won't recognise it yet. Run the Edimax install, select Driver Only and bosh. Sorted! Getting 4/5 on the signal strength and I live in a house with concrete walls.