The full file path or URL to the IPSearchlight Database File.
For example: "C:\Program Files\IPSearchLight\Database\GeoIPCity.dat" or "~/Database/GeoIPCity.dat"
IP_or_Host
The IP Address or Host Name to be geographically looked up.
For example: "216.239.37.99" or "www.google.com"
If this parameter is not set, the GeoLocator will automatically detect your site visitors' IP addresses.
Web_Service_Key
The MaxMind GeoIP City/ISP/Organization Web Service (http://www.ipsearchlight.com/links/enterprise_city_webservice.aspx) License Key. When specified, it overrides Database_Path_or_URL and data is fetched across the internet.