Whois
Whois Tool is a client utility that communicates with WHOIS servers located around the world to obtain domain registration information. Whois supports IP address queries and automatically selects the appropriate whois server for IP addresses. This tool will lookup information on a domain, IP...
http://www.nsauditor.com/freeware/downloads/whois.exe - 436Kb - Download - Screenshot

Visual WhoIs 2004
Visual WhoIs 2004 is a handy network tool that allows you to find relevant information about domains, ip addresses, web servers, email addresses... Protect your privacy, avoid fraudulent sites and hoaxes. Locate web sites, email addresses and IP addresses on a 3D globe. ... Visual WhoIs 2004 can perform WhoIs queries against domain names or IP addresses. ... It locates the address on a 3D globe and can even perform a visual trace route. ... A convenient browser integrated button allows you to find more information about the site you are currently browsing with a single mouse click.
http://www.softwareriver.com/download/visualwhois2004-11.exe - 2Mb - Download - Screenshot

Active Whois Browser
Active Whois is an easy-to-use network tool for the retrieving of all information such as country, email and postal addresses for the owners of IP addresses and Internet domains. Unlike other WHOIS clients, Active Whois does not require special skills to collect the desired information. ... The latest technology featured in Active Whois, allows you to explore DNS aliases, and will display the domain and IP address information together. ... Its unique WHOIS-hyperlink feature greatly improves the WHOIS search.
http://www.johnru.com/ActiveWhois.exe - 725Kb - Download - Screenshot

HotWhoIs
HotWhoIs is a convenient and easy-to-use application for sending queries on IP addresses and domain names to whois servers and examining the results. Using HotWhoIs, you can obtain all available information related to a given IP address or domain name. ... You can retrieve information about the organization or the internet service provider (ISP) that owns the IP address, including information about the country, state, city, address, contact phone numbers and e-mail addresses. ... The program can also query whois servers with plain web POST requests and display the results in the regular...
http://www.tialsoft.com/hwhois.exe - 1Mb - Download - Screenshot

Whois Extractor
Extract domain owner address, phone, fax, email, dns, date value from whois. Whois Extractor extracts domain information from global whois database source. It extracts Domain, TLD, Registrant, Admin Name, Address, City, State, Zip, Country, Phone, Fax, Email, NameServer, Domain Created Date,... The program auto saves all extracted data in csv/text file with success, error, log text.
http://www.bestextractor.com/whois/WhoisExtractor.exe - 708Kb - Download - Screenshot

IP Helper
This IP Helper software shows you both your internal and external IP addresses, can notify you by email when they change, performs DNS and Whois lookups, and much more! Many Internet Service Providers (ISPs) use non-static IP Addresses. Because of this, your IP Address can change frequently. ... Displays your Internal Network IP Address for users that are part of a network, or behind a router Displays your External IP Address, which is the IP Address that the "outside world" sees IP Address Overlay displays your IP Addresses in the top left corner of the screen, on top of all other windows!
http://www.rebrandsoftware.com/demodownload.asp?id=9 - 3Mb - Download - Screenshot

Atomic Whois Explorer
Atomic Whois Explorer is designed to search through global WHOIS database to extract owners' personal data. Current version of the program is capable of retrieving all contact e-mail addresses, phone and fax numbers, country name and expiration dates. ... Using Atomic Whois Explorer automates this process. ... When your search is completed and you see a list of domain owners' addresses and retrieved owners' information, Atomic Whois Explorer suggests you to save them into a file, Windows Clipboard or MS Excel/Word application.
http://www.massmailsoftware.com/d/awe.exe - 1Mb - Download - Screenshot

NetPenguin
NetPenguin - including following network tools:IP Scanner which can find IP address;LAN Scanner which can scan IP addresses in ethernet LAN;Ping;netstat;Port Scanner;Domain Name Search which can...
http://www.netpenguin.net/software/NetPenguin.exe - 9Mb - Download - Screenshot

SkWHOIS ActiveX Control
SkWHOIS ActiveX Control is a powerful, intelligent, flexible, and lightweight WHOIS ActiveX control. It allows developers to integrate the WHOIS/NICNAME protocol message sending capability into their applications. SkWHOIS ActiveX Control can be used to retrieve information about a specific... In Autodetect mode it can intelligently query the right remote database based on the query type (host IP address, host name, or domain name) and on the corresponding designated WHOIS server. ... SkWHOIS ActiveX Control is capable of processing multiple WHOIS requests simultaneously.
http://www.magnetosoft.com/downloads/skwhois_setup.exe - 2Mb - Download - Screenshot

AddInternet Domain Search
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. The software features two main functions for global searches: Domain Search and Whois Search. ... Whois Search: if a domain is already taken this function allows you to find out who is the domain owner including data such as company, name, address, email and more by searching the global Whois domain database.
http://www.addinternet.com/addinternet/DomainSearch.exe - 478Kb - Download - Screenshot