This download is NVIDIA GeForce 306.81 WHQL Windows XP 32-bit. Mind you that this release is for Windows XP only, there is no Vista, 7 or driver out based on this build.

NVIDIA Windows XP (32 bit) Display INF file
; Copyright (c) NVIDIA Corporation. All rights reserved.

[Version]
Signature = "$Windows NT$"
Provider = %NVIDIA%
ClassGUID = {4D36E968-E325-11CE-BFC1-08002BE10318}
Class = Display
DriverVer = 09/23/2012, 6.14.13.0681
CatalogFile = NV4_DISP.CAT

Release note :

This is the second WHQL-certified driver from the R304 family of drivers (304.xx to 306.xx).

New in GeForce 306.81

•Adds support for GeForce GTX 650 Ti.
•Updates SLI profile for Tom Clancy's Ghost Recon Future Soldier.

New in R304 Drivers:

•GPU Support
?Adds support for GeForce GTX 660 Ti, GeForce GTX 660, and GeForce GTX 650.
?Legacy Support Notification: GeForce 6-series and GeForce 7-series GPUs will be moved to legacy support after GeForce R304 drivers. GeForce R310 drivers (the next major family of drivers) will not support these products.
•Performance Boost – Increases performance for GeForce 400/500/600 Series GPUs in several PC games vs. GeForce 301.42 WHQL-certified drivers. Results will vary depending on your GPU and system configuration:
GeForce GTX 680:
?Up to 18% in Batman: Arkham City
?Up to 15% in Dragon Age II
?Up to 10% in S.T.A.L.K.E.R.: Call of Pripyat
?Up to 60% in Total War: Shogun 2 (fixes performance issue with latest game patch)
GeForce GTX 560:
?Up to 14% in Batman: Arkham City
?Up to 5% in Battlefield 3 with SLI
?Up to 4% in Dragon Age II
?Up to 8% in The Witcher 2: Assassins of Kings with SLI
?Up to 7% in Lost Planet 2
•NVIDIA SLI Technology – Adds or updates the following SLI profiles:?Alan Wake's American Nightmare – added
?Borderlands 2 – added
?Darksiders 2 – added
?End of Nations - added
?F1 2011 – updated
?F1 2012 – added
?Final Fantasy XIV – updated
?Nexuiz - added
?Orcs Must Die! 2 – added
?PlanetSide 2 - updated
?Saints Row: The Third – updated
?Shogun 2: Total War – updated
?Sleeping Dogs – added
?Spec Ops: The Line - added
?The Secret World - updated
?Torchlight II - added
?Tom Clancy's Ghost Recon Future Soldier - added
?Tornado Force - added
?Tribes: Ascend – updated
•Other Profile Updates
?Added NVIDIA Control Panel antialiasing support for Diablo III
?Added NVIDIA Control Panel antialiasing support for L.A. Noire
?Added NVIDIA Control Panel antialiasing support for Rayman Origins
?Disabled FXAA for several Windows programs like Media Player and Movie Maker.

•Installs PhysX System Software v9.12.0604.
•Installs HD Audio v1.3.18.0.
•Supports DisplayPort 1.2 for GeForce GTX 600 series GPUs.
•Supports multiple languages and APIs for GPU computing: CUDA C, CUDA C++, CUDA Fortran, OpenCL, DirectCompute, and Microsoft C++ AMP.
•Supports single GPU and NVIDIA SLI technology* on DirectX 9 and DirectX 10.
*Note: The following SLI features are only supported on Windows Vista, Windows 7, and Windows 8: GeForce GTX 600 series SLI, Quad SLI technology, 3-way SLI technology, Hybrid SLI, and SLI multi-monitor support.

Supported products :

GeForce 600 Series
GeForce GTX 680, GeForce GTX 670, GeForce GTX 660 Ti, GeForce GTX 660, GeForce GTX 650 Ti, GeForce GTX 650, GeForce GT 645, GeForce GT 640, GeForce GT 630, GeForce GT 620, GeForce GT 610
GeForce 500 Series
GeForce GTX 590, GeForce GTX 580, GeForce GTX 570, GeForce GTX 560 Ti, GeForce GTX 560 SE, GeForce GTX 560, GeForce GTX 555, GeForce GTX 550 Ti, GeForce GT 545, GeForce GT 530, GeForce GT 520, GeForce 510
GeForce 400 Series
GeForce GTX 480, GeForce GTS 450, GeForce GT 440, GeForce GT 430, GeForce GT 420, GeForce 405
GeForce 300 Series
GeForce GT 340, GeForce GT 330, GeForce GT 320, GeForce 315, GeForce 310
GeForce 200 Series
GeForce GTX 295, GeForce GTX 285, GeForce GTX 280, GeForce GTS 250, GeForce GTS 240, GeForce GT 230, GeForce GT 240, GeForce GT 220, GeForce G210, GeForce 210, GeForce 205
GeForce 100 Series
GeForce GT 140, GeForce GT 130, GeForce GT 120, GeForce G100
GeForce 9 Series
GeForce 9800 GX2, GeForce 9500 GS, GeForce 9400 GT, GeForce 9400, GeForce 9300 GS, GeForce 9300 GE, GeForce 9300 SE, GeForce 9300, GeForce 9200, GeForce 9100
GeForce 8 Series
GeForce 8800 Ultra, GeForce 8500 GT, GeForce 8400 GS, GeForce 8400 SE, GeForce 8400, GeForce 8300 GS, GeForce 8300, GeForce 8200, GeForce 8200 /nForce 730a, GeForce 8100 /nForce 720a
GeForce 7 Series
GeForce 7800 GT, GeForce 7800 GS, GeForce 7800 GTX, GeForce 7800 SLI, GeForce 7900 GS, GeForce 7900 GT/GTO, GeForce 7900 GTX, GeForce 7950 GT, GeForce 7950 GX2
GeForce 6 Series
GeForce 6100, GeForce 6100 nForce 400, GeForce 6100 nForce 405, GeForce 6100 nForce 420, GeForce 6150, GeForce 6150 LE, GeForce 6150LE / Quadro NVS 210S, GeForce 6150SE nForce 430, GeForce 6200, GeForce 6200 A-LE, GeForce 6200 LE, GeForce 6200 TurboCache(TM), GeForce 6200SE TurboCache(TM), GeForce 6250, GeForce 6500, GeForce 6600, GeForce 6600 GT, GeForce 6600 LE, GeForce 6600 VE, GeForce 6610 XL, GeForce 6700 XL

This is a full driver package which includes Mobile support as well.