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)   SkDNS ActiveX Control 4.0
SkDNS ActiveX Control is a DNS (Domain Name Service) ActiveX control that can be used for network diagnosing, troubleshooting, and monitoring. It allows developers to integrate the DNS protocol message sending capability into their applications.
name lookup, nslookup, simultaneous, simultaneously, multiple, asynchronous, ActiveX, RFC, 1034, 1035.AFXR,