Nsauditor Network Security Auditor
Nsauditor Network Security Auditor is a network security scanner that allows to audit and monitor remote network computers for possible vulnerabilities, checks your network for all potential methods that a hacker might use to attack it. Nsauditor is a complete networking utilities package that... The program also includes real-time network packet filtering and analyzing, remote network performance monitoring, network status monitoring, web proxy scanning, password auditing, intrusion detection system based on security events log analyzer, IP address lookup and more than 45 network tools...
http://www.nsauditor.com/downloads/nsauditor_setup.exe - 5Mb - Download - Screenshot

PCPal
PCPal helps you maintain your PC and its environment optimized and protected. PCPal continuously monitors your PC, notifies you about important issues, and suggests fix solutions. Additionally, PCPal provides you with a 1-click checkup function, which enables you to check your PC whenever you like. ... 2) Secure: PCPal helps you keep your system secure, by continuously monitoring your computer's security settings and software, and offering you relevant security updates.. ... PCPal provides support for a wide range of areas, such as security, performance, network, and printing.
http://www.pcpal.com/app/pcpal_setup.exe - 5Mb - Download - Screenshot

Network Traffic Monitor Analysis Report
Network Packet Analyzer enterprise edition is an advanced network traffic monitoring, analysis and reporting. It works in all Windows based operating systems. It captures all traffic transport over both Ethernet and WLAN networks. Network Packet Analyzer decodes all major TCP/IP protocols. ... Network Packet Analyzer is a comprehensive and affordable solution to the following problems: Troubleshooting network problems; Debugging new applications with network communication involved; Monitoring network traffic for performance, bandwidth usage, and security reasons; Analyzing network traffic...
http://www.javvin.com/packetent_demo.zip - 9Mb - Download - Screenshot

ShareAlarmPro
ShareAlarmPro is a network tool that allows network administrators and users easily perform a shared folders and resources monitoring. Using ShareAlarmPro you can monitor users attempting to access secured shares and confidential files, detect and log network access to shared folders, monitor... Security Event Log Monitor monitors the security event logs of Windows NT/2000/XP servers or workstations and depending on configuration will notify user on selected events detection by showing a small popup window with event details.
http://sharealarm.nsauditor.com/downloads/sharealarmpro_setup.exe - 1Mb - Download - Screenshot

Employee Monitoring
Employee Monitoring is the most dependable, powerful, capable, and very affordable, Internet monitor in the world. It records all Internet activity including all web surfing and instant messaging on MSN, AOL, Yahoo! and ICQ. E. M. records any file downloads and streaming content and all emails... Not only is Employee Monitoring a potent productivity tool, it’s also a great network diagnostic utility tool, spyware detector, bandwidth monitor, sniffer, security tool and intellectual property theft deterrent.
http://www.employeemonitoring.net/...d/Employee-Monitoring-setuptr.zip - 805Kb - Download - Screenshot

CommView for WiFi PPC
CommView for WiFi PPC is a special lightweight edition of CommView for WiFi that runs on Pocket PC handheld computers. This product is a cost-effective WLAN diagnostic solution designed for express wireless site surveys, as well as capturing and analyzing network packets on wireless 802. ... Wireless network administrators can use this portable solution as a source of important information on network parameters, radio interference, security holes, or rogue access points; which is necessary for deployment and maintenance of WLANs.
http://www.tamos.com/files/cahh1.zip - 249Kb - 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. ... NetAudit (NetBIOS Auditing Tool): allows you to perform security checks on your network and/or individual computers offering the NetBIOS file sharing service. ... This tool features parallel scanning, which allows checking a class C network in less than one minute.
http://www.tamos.com/files/ent4.zip - 3b - Download - Screenshot

GFI LANguard Security Event Log Monitor
LANguard Security Event Log Monitor is a network wide event log monitor that retrieves logs from all NT/2000 servers and workstations and immediately alerts the administrator of possible intrusions for immediate host based intrusion detection. Using the LANguard event viewer you can also create... Because LANguard analyses the system event logs, rather than sniffing network traffic like traditional IDS products do, LANguard S. ... is not impaired by switches, IP traffic encryption or high speed data transfer.
http://software.gfi.com/lanselm.exe - 12Mb - Download - Screenshot

CleverEye for Availability Monitoring
What CleverEye for Availability Monitors NodeWatch gives you complete view on the availability of your environment, Ping Check Routers, Switches, and other vital network components. Monitor Servers or any TCP Connect based application DNS, FTP, Web servers, Mail servers, and Application servers... Database, FTP, Webserver, Advanced Webserver, DNS, Mail Server, LDAP Server, Network File Copy, Active Directory, and Custom Test Features and Capabilities Network Status Map: Quickly see a graphical display of your nodes and displays alert message as the mouse moves over the node.
http://www.nrgglobal.com/downloads/CE_AM_Setup.zip - 9Mb - Download - Screenshot

MegaPing
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: Scanners: Comprehensive Security Scanner, Port scanner (TCP and UDP ports), IP scanner, NetBIOS scanner,... Automatically detect security vulnerabilities on your network MegaPing security scanner checks your network for potential vulnerabilities that might use to attack your network, and saves information in security reports.
http://www.magnetosoft.com/downloads/megaping_setup.exe - 4Mb - Download - Screenshot