So today I decided to get my D-Link wireless adapter working with Windows 7 (64bit).
Turns out there is no driver for Windows 7.
Apparently, Windows 7 has the drivers built into the OS.
I think not.
I used the Windows Vista (64bit) driver from my driver CD.
It worked perfectly without any problems.
So for everyone that has the same adapter D-Link DWA-120, use the Windows Vista driver.
You shouldn’t have any problems.
I hope that info helps someone out there.
Cheers!