I have installed Win 7 64-bit on my computer.
1. install driver from the CD supplied
2. USB connector plugged in, waited briefly, until Device ready
3. button pressed to search controller both the adapter and the desired controller
The controller was immediately recognized and everything works smoothly since then, with rumble feature. Actually, just like with my XBox.
Definitely for Win7 64-bit user I can give an unlimited purchase recommendation.