Nslookup.exe is a simple interface to the DNS system. It provides the most commonly requiredfunctionality of the unix nslookup command, i.e. translation between IP addresses and hostname (domain name). For example, the IP address of www.google.com is 216.239.33.101 Likewise, the hostname associated with the IP address 209.73.164.91 is Т‘altavista.comТ‘.