In it's original form this is a Quadro driver with revision build 67.20, strangely enough at standard it does support a lot of modern consumer graphics cards like the 6600 series.

The drivers have been pest and virus checked them and they turn out quite alright as they originate from NVIDIA's servers. Should you give them a try then let us know in our discussion forums what you think about them ! Use them at your own risk. If your graphics card is not supported then try out the modified .inf file (read the readme.txt) so you can use these drivers (courtesy of laptopvideo2go).

GPU's that are supported and WHQL'd:
NVIDIA_NV30.DEV_0301.1 = "NVIDIA GeForce FX 5800 Ultra"
NVIDIA_NV30.DEV_0302.1 = "NVIDIA GeForce FX 5800"
NVIDIA_NV30.DEV_0308.1 = "NVIDIA Quadro FX 2000"
NVIDIA_NV30.DEV_0309.1 = "NVIDIA Quadro FX 1000"
NVIDIA_NV31.DEV_0311.1 = "NVIDIA GeForce FX 5600 Ultra"
NVIDIA_NV31.DEV_0312.1 = "NVIDIA GeForce FX 5600"
NVIDIA_NV31.DEV_0314.1 = "NVIDIA GeForce FX 5600XT"
NVIDIA_NV34.DEV_0321.1 = "NVIDIA GeForce FX 5200 Ultra"
NVIDIA_NV34.DEV_0322.1 = "NVIDIA GeForce FX 5200 "
NVIDIA_NV34.DEV_0323.1 = "NVIDIA GeForce FX 5200LE"
NVIDIA_NV34.DEV_0326.1 = "NVIDIA GeForce FX 5500"
NVIDIA_NV34.DEV_0327.1 = "NVIDIA GeForce FX 5100"
NVIDIA_NV34.DEV_032A.1 = "NVIDIA Quadro NVS 280 PCI"
NVIDIA_NV34.DEV_032B.1 = "NVIDIA Quadro FX 500/FX 600"
NVIDIA_NV35.DEV_0330.1 = "NVIDIA GeForce FX 5900 Ultra"
NVIDIA_NV35.DEV_0331.1 = "NVIDIA GeForce FX 5900"
NVIDIA_NV35.DEV_0332.1 = "NVIDIA GeForce FX 5900XT"
NVIDIA_NV35.DEV_0333.1 = "NVIDIA GeForce FX 5950 Ultra"
NVIDIA_NV35.DEV_0334.1 = "NVIDIA GeForce FX 5900ZT"
NVIDIA_NV35.DEV_0338.1 = "NVIDIA Quadro FX 3000"
NVIDIA_NV35.DEV_033F.1 = "NVIDIA Quadro FX 700"
NVIDIA_NV36.DEV_0341.1 = "NVIDIA GeForce FX 5700 Ultra"
NVIDIA_NV36.DEV_0342.1 = "NVIDIA GeForce FX 5700"
NVIDIA_NV36.DEV_0343.1 = "NVIDIA GeForce FX 5700LE"
NVIDIA_NV36.DEV_0344.1 = "NVIDIA GeForce FX 5700VE"
NVIDIA_NV36.DEV_034E.1 = "NVIDIA Quadro FX 1100"
NVIDIA_NV40.DEV_0040.1 = "NVIDIA GeForce 6800 Ultra"
NVIDIA_NV40.DEV_0041.1 = "NVIDIA GeForce 6800"
NVIDIA_NV40.DEV_0042.1 = "NVIDIA GeForce 6800 LE"
NVIDIA_NV40.DEV_0045.1 = "NVIDIA GeForce 6800 GT"
NVIDIA_NV40.DEV_004E.1 = "NVIDIA Quadro FX 4000"
NVIDIA_NV41.DEV_00C0.1 = "NVIDIA NV41"
NVIDIA_NV41.DEV_00C1.1 = "NVIDIA GeForce 6800 "
NVIDIA_NV41.DEV_00CE.1 = "NVIDIA Quadro FX 1400"
NVIDIA_NV43.DEV_0140.1 = "NVIDIA GeForce 6600 GT"
NVIDIA_NV43.DEV_0141.1 = "NVIDIA GeForce 6600"
NVIDIA_NV43.DEV_0145.1 = "NVIDIA GeForce 6610 XL"
NVIDIA_NV43.DEV_014E.1 = "NVIDIA Quadro FX 540"
NVIDIA_NV43.DEV_014F.1 = "NVIDIA GeForce 6200"
NVIDIA_BR02.DEV_00F8.1 = "NVIDIA Quadro FX 3400/4400"
NVIDIA_BR02.DEV_00F9.1 = "NVIDIA GeForce 6800 Series GPU"
NVIDIA_BR02.DEV_00FA.1 = "NVIDIA GeForce PCX 5750"
NVIDIA_BR02.DEV_00FB.1 = "NVIDIA GeForce PCX 5900"
NVIDIA_BR02.DEV_00FC.1 = "NVIDIA GeForce PCX 5300"
NVIDIA_BR02.DEV_00FD.1 = "NVIDIA Quadro PCI-E Series"
NVIDIA_BR02.DEV_00FE.1 = "NVIDIA Quadro FX 1300"