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.

IP Country Lookup is a free application for Windows that lets you lookup the country associated with an IP address or hostname.

The kick'n TCP/IP diagnostic toolkit - cool tools for network troubleshooting. Includes GeoRoute (graphical trace route), iSpeed (Internet speed test), LAN (LAN scanner), NetStat (identify creating process), PING, IPConfig, DNS (nslookup), and Tools

Create list of computers in network neighborhood (Samba) with CList utility. To faster response of computer condition in LAN (using ping technique) & access to them use tray utility NCConnector. Has integration with TotalCommander.

NetInfo is a collection of 15 different state-of-the-art network tools on a single, easy-to-use interface that allows you to isolate faults, simplify processing of diagnostic data, and increase internal network security.

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.

PackPal Ping Utility is a handy and powerful ping program for system administrator or webmaster to check network connection, intended to replace the standard ping program.

Advanced graphical traceroute with charting, ip location maps, whois, performance testing, firewall detection, and much more

Ping-Probe offers a comprehensive suite of networking tools. Each of the tools offers a modern interface and flexible functionality. Tools include Ping, Traceroute, Port Scanner, Network Scanner, SNMP, Bandwidth Monitor, DNS, Finger, Whois & LDAP.

Pingotron is made for network administrators, webmasters, and Internet service providers.