This module uses a visitor's IP address to identify the geographical location (country) of the user. The module makes this determination and stores the result as an ISO 3166 country code in the Drupal $user object, but otherwise has no effect on the operation of your site. The intent is simply to provide the information for use by other modules. Anonymous users are not identified by country.
A README.txt is included, containing detailed installation instructions and a discussion of what the module does and how it does it. Please consult the README.txt before posting questions/problems.