Nslookup

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.

Interactive DNS Query is a program designed to allow you to perform a query of DNS records. It is similar to the unix "dig" or "nslookup" commands, and uses a convenient GUI interface. Query for all types of DNS records, include A, MX, TXT, NS, ...

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

IsEu is a quick domain availability lookup, just copy and paste your domainlist and press the button to get blazing fast availability results

Emsa FlexInfo Pro is an advanced system information and diagnstics utility. Gets system information data, also benchmark (CPU Speed test), and network info (IP/host lookup, Ping), realtime stats, html reports etc. Freeware.

Emsa PC FlexInfo is a system information and diagnstics utility. What it does is, gathering system information data, also benchmark (CPU Speed test), and network info (IP and host lookup, Ping tool). It also shows realtime stats. Freeware.

AWSPS features a very comprehensive set of tools, some of them unique, for in-depth assessment of Network Security, namely 2 TCP port scanners, 1 UDP port scanner, 1 NetBIOS scanner, comprehensive Local Host and LAN information and much more.

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.