Oracle 10.2 on Window Server 2008

Dear All,

I want to install Oracle 10.2 on Window Server 2008 but when i start the Oracle installation then I am getting following error.

Starting Oracle Universal Installer...
Checking installer requirements...
Checking operating system version: must be  5.1 or 5.2 .    Actual 6.0
                                      Failed <<<<
Exiting Oracle Universal Installer, log for this session can be found at C:\User
s\ADMINI~1\AppData\Local\Temp\OraInstall2012-01-04_10-53-51AM\installActions2012
-01-04_10-53-51AM.log
Please press Enter to exit...

how can i resolve this issue?

Regards,