KFWhois 

KF Whois makes it easy to look up and store domain registration details. It tracks changes to domain registrations and warns you when they are about to expire.
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DomaiNIC 

DomaiNIC is a speedy tool designed to generate and find good domain names easily. The smart fully customizable Domain Name Generator and the Domain Name Research Tool helps you in finding domain names that might yet be available.
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Capturix NETWorks 

Capturix NETWorks is a network utility software that ables you to test and diagnose all common problems from any network.
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