This is NVIDIA ForceWare 84.22 as recently found on the web. These drivers seem to be a nice set. In it's original from only a couple of GeForce cards where supported so a modified .inf was included to make these drivers compatible with a large number of NVIDIA GeForce Graphics cards.

Original this was a WHQL set, due to the modification to support other GeForce graphics cards this certification was lost. It's a nice set of drivers, give them a try.

Although response is good please bare in mind that this is beta driver. Use them at your own risk.