Ip2CountryResolver 

If you are doing business on the Internet and you want to know where your users are from, you've found the right place! Ip2CountryResolver will help you to identify visitor's geographical location country and country code.
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FreePortScanner 

Free Port Scanner is a small and fast port scanner for the Win32 platform. You can scan ports on fast machines in a few seconds and can perform scan on predefined port ranges.The tool is designed with a user-friendly interface and is easy to use.
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FreeNetEnumerator 

FreeNetEnumerator is a tool to enumerate computers in a domain. Depending on enumeration parameters the tool can work in different ways. It can enumerate all computers,SQL servers,primary domain controllers,backup domain controllers,etc.
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Nsauditor Network Security Auditor 

Nsauditor scan and monitor network for possible vulnerabilities,to see all open ports and service associated with connection,possible trojans associated with port.Over 35 network tools for scanning,sniffing,enumerating and gaining access to machines.
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ShareAlarm 

Share alarm is a tool that allows you to see parameters of the workstation which tries to establish a connection with your computer.The remote workstation, user, path, OS, permissions of the accessed folder.
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NetSendFaker 

NetSendFaker allows you to send anonymous Net Send messages to anyone that is connected to the network. You can also emulate messages as if they were sent from other computer. The tool is designed with a user-friendly interface and is easy to use.
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