When Servers Alive detects a down condition, it can respond with a wide array of notifications and alerts, including sending an e-mail (SMTP) saying what is down, paging you with a numeric or alphanumeric warning, executing a program, playing a sound, creating a web or WAP page, and restarting an NT service.

NetStatus Professional
NetStatus Pro is a monitoring application designed to monitor anywhere from 1 to 250 servers or devices on a network. Tests include HTTP, FTP, Telnet, Ping, Disk Space, Event Log, File Exists, NT Service Status, Performance Monitor and more.

LanTopolog 2
Provides automatic physical network topology discovery, network map visualization, detailed and searchable physical network topology map, monitoring device's state in real-time, network traffic monitoring, web browser-based access

Syslog Watcher Pro Edition
Gather syslog data from network appliances and workstations. Syslog Watcher Pro Edition collects syslog information from network devices via UDP and TCP protocols, and works in IPv4 and IPv6 networks, records, stores, organizes and displays syslogs.

Ping Assist Pro
Ping Assist Pro is used to permanently monitor network devices (routers, servers, workstations, network printers, etc.). The software consists of two modules: 1) Ping Assist Service. 2) Ping Assist Monitor.

AdRem SNMP Manager
AdRem SNMP Manager allows for the remote monitoring and control of network devices. The solution supports SNMP v1, 2, and 3, enabling tasks such as SNMP node discovery; trap receiving/forwarding; MIB viewing, compiling, loading, editing, and walking.