NetworkView is a compact network discovery and management tool for the Win32 platform : in a few minutes, it will discover all TCP/IP nodes and draw a full graphical map (including routes) using DNS, SNMP and TCP Ports information. It can also poll the network and send an email when nodes are unreachable. With more than 5000 sysObjectIDs and more than 5000 MAC OUI in its databases, it can be used from a FLOPPY DISK !
Advanced LAN Scanner
Advanced Port Scanner is a small, fast, easy-to-use and robust LAN scanner for the Win32 platform. It is multithreaded, so on fast machines you can scan many computers at once.
Hail Me for Windows NT
This is a small utility that allows you to send messages (upto 128 characters) to other computers in NT domains or workgroups. It is a MS Windows application for the NET SEND command.
ServersCheck STANDARD Edition
ServersCheck is a software application for round-the-clock monitoring, reporting and alerting on the availability of systems. It includes real-time HTML reports, graphs and Service Level details. ServersCheck can be administrated through a browser.
Network Analyzer
Automatically monitor the machines (NT/2000/XP) in your network and get notified visually, by voice or email when usage of the CPU/Memory/Disk/Network is excessive.
LAN Viewer
LAN Viewer is a useful tool monitoring the shared folders on a local network and notifies about new files.