CountryWhois for Windows

CountryWhois is a utility for identifying the geographic location of an IP address. CountryWhois can be used to analyze server logs, check e-mail address headers, identify online credit card fraud, or in any other instance where you need to quickly and accurately determine the country of origin by IP address. CountryWhois offers a very high accuracy, unprecedented speed of processing (a 100 MB log file is processed within one second), regular updates that keep the ever-changing IP address database up-to-date, an array of supported import and export formats, command-line mode, and a convenient interface.