User Finder
User Finder scans your network computers to provide details of which user is logged onto which computer throughout your network. Finding users on your network just became easier. Why should you choose User Finder? No longer do you need psychic powers to find which computer a user is logged onto. ... Perform a ping or a traceroute to the PC to check network connectivity. ... Scan up to 400 computers/minute. ... Find the user and send them a message. ... Telnet to the routers along the way.
http://www.compulsionsoftware.com/UserFinder.exe - 4Mb - Download - Screenshot

The Dude
The Dude network monitor is a new application by MikroTik which can dramatically improve the way you manage your network enviroment. It will automatically scan all devices within specified subnets, draw and layout a map of your networks, monitor services of your devices and alert you in case...
http://www.mikrotik.com/download/dude-install-1.1.exe - 1Mb - Download - Screenshot

Essential NetTools
Essential NetTools is a set of network tools for diagnosing networks and monitoring your computer's network connections. NetStat: displays the list of your computer's network connections, information on open TCP and UDP ports, IP address, and connection states. ... PortScan: an advanced TCP port scanner that allows you to scan your network for active ports. ... NetAudit (NetBIOS Auditing Tool): allows you to perform security checks on your network and/or individual computers offering the NetBIOS file sharing service.
http://www.tamos.com/files/ent4.zip - 3b - Download - Screenshot

WiFi Hopper
WiFi Hopper enables the user to scan for and connect to wireless networks. It can list network details including Ssid, MAC Address, signal, network mode, encryption status (WEP, WPA), frequency, channel, physical layer and beacon interval. WiFi Hopper features a driver to ensure exclusive access... Whether you are a WLAN Administrator, Security Administrator, Home User, War Driver or a Programmer, WiFi Hopper will prove valuable to your needs. ... In addition to the tradition features, WiFi Hopper can automatically hop between different wireless networks as they become available or fade...
http://wifihopper.com/binaries/1.1/hopper-1.1.exe - 844Kb - Download - Screenshot

Infiltrator Network Security Scanner
Infiltrator is a network security scanner that can quickly audit your network computers for possible vulnerabilities, exploits, and information enumerations. It comes with a built-in database of know vulnerabilities, that can be updated online and allows you to select the items to scan for or to... It can also audit password and security policies, perform HTTP/CGI server auditing, registry auditing In addition, Infiltrator also comes with 18 network utilities for footprinting, scanning, enumerating and gaining access to machines (ping sweep, whois lookups, email tracing, share scanning and...
http://www.infiltration-systems.com/Files/infiltrator.zip - 1Mb - Download - Screenshot

Network DeepScan
Network DeepScan is a powerful tool for searching shared NetBios (including system and hidden) and FTP resources over local area networks. This network tool can scan over multiple IP subnets, filter found resources by various criteria, sort it by Host Name, IP Address or Workgroup. ... Find out how easy and effective network browsing can be with the Network DeepScan! ... Also there is a special feature in this network tool - LAN Explorer. ... All important aspects of program configuration are combined under a modern graphical user interface.
http://www.deepscansoft.com/Downloads/Network_DeepScan.zip - 3Mb - Download - Screenshot

Network Commander
This application was written due to a lot of frustration from my side, I have been working a lot with network configurations, routers setup (networking maintenance, in general). I didn? t have any good tool that will help me with the little things. I hate going to command prompt and run programs... Couple of more convenient features where implemented to make your life much more easier: port scanner, that can scan a range of IP address for open/closed ports, network utilization that can enumerate the current network usage, TCP/UDP/ICMP/IP statistics for the current machine and more..
http://geocities.com/ncfreeware/NC201Setup.zip - 9Mb - Download - Screenshot

Maxpatrol
MaxPatrol is a professional network security scanner distinguished by its uncompromisingly high quality of scanning, optimized for effective use by companies of any size (serving from a few to tens of thousands of nodes). It supports vulnerability testing for servers with non-standard... Additional features include scheduled scans, custom level vulnerabilities, full scan history and more. ... Although MaxPatrol operates within Microsoft Windows, it can test for possible vulnerabilities in any software or hardware platform: from Windows workstations to Cisco networks (*nix, Solaris, Novell,...
http://www.maxpatrol.com/download/mp7demo.zip - 3Mb - Download - Screenshot

Audit Tool
NetVigil Audit Tool is a client software component installed on every workstation with many important functions for managing the legal aspects - software licenses and serial numbers, as well as the corporate hardware registry and the IT accounting records of your network. ... Key features: Scanned results are sent automatically to the NETvigil database Employee working time reports Full control of software licenses in the company Full control of corporate hardware Theft and installation alerts (information on any change in hardware configuration) Legal alerts (information on...
http://www.s3software.info/html/s3/download/audit_tool.exe - 5Mb - Download - Screenshot

Advanced LAN Scanner
Advanced Lan Scanner is a small, easy-to-use, highly configurable network scanner for Win32. And it's fast. It's VERY fast. Advanced Lan Scanner uses multithreading technique, that gives it ability to scan more than 1000 elements per second! If used to scan ports, Advanced Lan Scanner can scan... It performs very deep scan upon each computer you wish, extracting users, services, shares and a lot of over useful information. ... Also, fast scan is not only Advanced Lan Scanner good feature. ... So, try our freeware program and see, how REAL Lan Scanner must look.
http://www.radmin.com/download/lscan1b1.exe - 562Kb - Download - Screenshot