Easy Network Service Monitor
Easy Service Monitor is a network fault management tool that continuously monitors network devices and services. If something went wrong, it will alert you by email/phone/pager BEFORE problems get seriously out of hand. A detailed log file will record every event of the monitored targets and can... You can configure the system so that when something goes wrong, a set of actions, such as execute a program, reboot server or update web page, will be triggered.
http://www.javvin.com/emonitor.exe - 2Mb - Download - Screenshot

Plug-and-Play Monitor
Plug-and-Play Monitor is an experimental tool which displays plug-and-play notifications from the system. To start monitoring, select a device type from the drop-down list or tick Monitor all device types and click Start. If a network adapter is plugged or unplugged while the program monitors... When it is is ticked all PnP notifications are shown otherwise only the notifications for the selected device type are displayed. ... Note: the Monitor all device types option is only available on Windows XP systems.
http://noeld.com/dl.asp?path=pnpmon.zip& - 84Kb - Download - Screenshot

Little:eye
CBR little:eye, which is developed for management of IT infrastructure of enterprise and provides management of fault, performance, inventory and configuration is the closest assistant of system administrators through impressive user interface and usability . ... Little:eye network management software performs all of the functions expected from standard network management software like: Maps(AutoDiscovery) Monitoring Fault Management Remote Control Inventory management for Windows Web based reports Performance Monitoring CISCO device monitoring MOTOROLA device monitoring SNMP Device...
http://www.cbr.com.tr/cbr/littleeye/littleeye.exe - 16Mb - Download - Screenshot

Little:eye Lite
CBR little:eye Lite, which is developed for management of IT infrastructure of enterprise and provides management of fault, performance, inventory and configuration is the closest assistant of system administrators through impressive user interface and usability .
http://www.cbr.com.tr/cbr/littleeyelite/littleeye_lite.exe - 16Mb - Download - Screenshot

Monitor one
Monitor one, is an easy to use and rich-featured SNMP Network management and monitoring application. It allows Network managers to monitor all of their networking devices (Routers, Switches, Servers, etc.. ) at a glance through an intuitive (native and web-based) graphical network map on a... Monitor one includes powerful features like: SNMP MIB data retrieval, MIB compiler, Status polling, Health polling, Threshold monitoring and Trending, Syslog server, Device discovery, Alerting and a MIB browser.
http://dl.filekicker.com/send/file/173632-4833/MonitoroneLV.exe - 16Mb - Download

XR SNMP Tools
XR SNMP Tools is a set of high performance tools for monitoring network SNMP manageable devices. XR SNMP Tools monitors the Network Health as well as many other network parameters like bandwidth usage, error and collision rates, memory and CPU usages. ... The most common usage is real-time network monitoring of WAN and LAN networks, but you can also monitor many other aspects of managed switches, printers, and other network components as long as they are SNMP enabled. ... Powerful network diagnostics such as the Network Health are easily achieved using XR SNMP Tools.
http://www.xratel.com/dload/snmp/xr_snmp_tools.exe - 8Mb - Download - Screenshot

MetaGauge
MetaGauge is network traffic monitoring software designed to be easy to configure and maintain. MetaGauge monitors traffic on network devices by using SNMP to track the amount of data passed through the interfaces. The statistics are kept in a database and then displayed in HTML and Graphs. ... Although MetaGauge is designed for a corporate network environment it will work with any device that supports SNMP interface monitoring including most DSL modem/routers. ... A web server is included but Windows built in web server can be used as well.
http://download.hammer-software.com/metagauge.zip - 2Mb - Download - Screenshot

Cisco CDP Monitor
Cisco CDP Monitor is an efficient network diagnostic and troubleshooting tool. It is very useful for network administrator and network engineer. At first, Cisco CDP Monitor is a CDP agent for windows host. It is able to use the CDP(Cisco Discovery Protocol) which is a private protocol and is... With Cisco CDP Monitor, You can send the information (CPU number and model, host name, user name and the windows version, service pack version) of your host to the connective Cisco device with CDP, and you can get and display the information from the connective Cisco device, such as device name,...
http://www.tallsoft.com/cdpmonitor_setup.exe - 917Kb - Download - Screenshot

IPMonitor
IPMonitor is a sophisticated network monitoring solution that allows network administrators, webmasters, and Internet service providers to monitor any networked device on the Internet, corporate intranet, or TCP/IP LAN and receive alerts immediately via audible alarm, message, e-mail, or... Main features: runs as a system tray application automatically on startup, monitors up to 500 network devices or services simultaneously, allows quick network resource configuration, allows all parameters to be set independently for each network resource, permits you to temporarily disable monitoring of...
http://ipmonitor.tsarfin.com/downloads/ipmonitor.zip - 1Mb - Download - Screenshot

Big:eye
CBR big:eye, which is developed for management of IT infrastructure of enterprise and provides management of fault, performance, inventory and configuration is the closest assistant of system administrators through impressive user interface and usability . ... big:eye network management software performs all of the functions expected from standard network management software like: Maps(AutoDiscovery) Business Views Monitoring Fault Management Remote Control H/W Reports Hardware Reports S/W Reports Software Reports Inventory management for Windows Inventory Change management for Windows...
http://www.cbr.com.tr/cbr/bigeye/bigeye.exe - 16Mb - Download - Screenshot