Session based error on windows server

The error says, the save path is not writa ble, or to solve this change your session save path in config file(read docs). In windows folder under system installation drive(windows, program files n etc) is not writable if you does not have admin permission.

As it is hosted in godaddy windows server....can u say me in detail where shall i need to update in config file...and what will be the complete path for that....can u give me some example pls...