FindDomains is a multithreaded search engine discovery tool that will be very useful for penetration testers dealing with discovering domain names/web sites/virtual hosts which are located on too many IP addresses. Provides a console interface so you can easily integrate this tool to your pentest automation system. It retrieves domain names/web sites which are located on specified ip address/hostname.
Download Here :: FindDomainsv0.1.1 (for Windows)
Source :: http://code.google.com/p/finddomains/