Whois Wizard v3 is a custom control that allows a programmer to access an WhoIs server and conduct queries. This control takes away the tedious task of learning how WhoIs works, and does all the work for you.
Whois Servers hold registration data for the web site domains. By conducting a query on the server using a domain name, you can find out who has registered the domain name and their contact information.
See Why Use Whois Wizard v3 for more information.