1)   MegaPing 4.5
MegaPing is the ultimate must-have toolkit that provides all essential utilities for Information System specialists, system administrators, IT solution providers or individuals. It includes: Comprehensive Security Scanner, Host monitor, and more.
host monitor, security scanner, scan, ping, traceroute, finger, name lookup, nslookup, whois, port scanner,

 2)   SkPortScan ActiveX Control 5.0
SkPortScan ActiveX Control is a lightweight, intelligent, and powerful port scanner control. It allows developers to integrate port-scanning capabilities into their applications. SkPortScan can be used for network exploration or security auditing
portscan, port, scan, scanner, ActiveX, control, TCP, UDP, hostile, exploration,

 3)   Essential NetTools 4.0
Essential NetTools is a useful tool for diagnosing networks and monitoring your computer's network connections. It's a Swiss Army knife for everyone interested in a set of powerful network tools for everyday use.
network, monitoring, netstat, ping, traceroute, IP, portscan, snmp, audit, utility,