nHancer is a tool to improve the usage of these features. Both normal and advanced users should find nHancer to be a big step forward.
Additionally, nVidia drivers include a unique feature, that allows them to define profiles for every game, which control various image quality, compatibility and optimization aspects. But in the standard control panel, this feature is even more cryptic to use, so most people never bothered about it.
But it's such a powerful and handy tool, even for the average guy. So another aspect of nHancer is to improve the handling of those profiles by adding many features that the normal control panel doesn't offer at all and improving the ones that it does offer.
Download link #2 =
32-bit version
Download link 3 (Europe)= 64-bit version