Intel 845 GVSR Drivers Worked for Windows Vista.

You can solve this problem by this way.
It works for me ....

1) First install Winrar ....
2) Copy your graphics driver setup file in a folder eg. C:\Users\Sanjay\Desktop\driver
3) Try to open this file from winrar....
a) Open Winrar
b) Type the address in the address bar... eg. C:\Users\Sanjay\Desktop\driver
c) double click the setup file (say name is iata_enu.exe)
d) the setup fle will open and we can see files of that set file
4) select all file and copy them on another folder eg. C:\Users\Sanjay\Desktop\driver_extracted
5) Now go to Device Manager (for this right Click Computer click on property -> click on device Manager)
6) Right click on Display adapters
7) "Update Driver" Window opens Click on "Browse My Computer for driver Software"
Cool Now Browse to the folder where we extracted the setup files eg. C:\Users\Sanjay\Desktop\driver_extracted
9) Click Next

Now you r done Have fun...