ForceWare 171.23 and 173.80 Betas Released
NVIDIA’s new 171.23 and 173.80 beta drivers for Windows XP 32-bit and Windows Vista 32-bit respectively have found their way onto the internet, although no new 64-bit drivers are available. There are no release notes unfortunately because the drivers are not officially available from NVIDIA, but they should support just about all current GeForce 6, 7 and 8 series cards, as well as the upcoming 8200 and 9200 cards. The download locations are as follows:
Source: techPowerUP!