1)   AddInternet Domain Search 1.33
AddInternet Domain Search is a free software that allows you to search for domain names available for registration as well as find out who is a domain owner by searching the global Whois database.

 2)   Expired Domain Finder 1.0
Expired domain finder - Search over 3 million premium domain names for sale at Web-Business-Pro-Solution.com. Find premium domains under $10.00. This tool gives you all the expired domain info.