Almost every operating system that communicates via TCP IP, the standard of communication on the Internet, has a file called the HOSTS file. This file allows you to create mappings between domain names and IP addresses. Another way to think of a hosts file is as an address translator and redirector. Bluelife hosts editor is a Portable hosts-file editor and allows you to easily add/delete, block, update domain names to your hosts file. Simply type the hostname you wish to add and use "Get IP Adress and add the list" button.