1)   Quick Ping Monitor 2.61
A powerful simultaneous ip monitor tool . It is able to monitor thousands of IP equipments simultaneously and send message and mail when states of some equipments change , it could also adopt necessary steps to deal with troubles.

 2)   A1Monitor Network Monitor TCP or Web 6.1.70
Monitor multiple web or TCP servers (http, https, ftp, pop3 etc.) Receive email notification by email or pager if any can't be reached a number of times in a row

 3)   NetStatus Professional 2.4.1.0
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.

 4)   ActiveXperts Network Monitor 6.0
Use ActiveXperts Network Monitor to monitor LAN and WAN workstation, servers and devices. Support for Windows, Novell, UNIX and Linux. Monitor mail servers, databases, web servers, DNS, files, , disks, processes, snmp, tcp, temperature and more.

 5)   Sentry-go Quick Server Monitor 4.1
Easily monitor your Microsoft Windows Server, take automatic action and/or alert you to issues if they arise. Checks include services, processes, disk space, performance, event logs & network connectivity. Quick & easy to install, configure & manage.

 6)   NetStatus 2.3.1.0
NetStatus is a monitoring application designed to monitor anywhere from 1 to 50 servers or devices on a network. Tests include HTTP, FTP, Telnet, Ping, Disk Space, NT Service Status, POP3, SMTP and more.

 7)   EverWatch Server Monitor 1.0
Freeware program to continuously monitor your web server's (or any other server's) up and down time. User-defined polling interval and detailed logging and performance statistics.

 8)   Website Monitoring Expert 4.5.8
Website Monitoring Expert is a multithreaded website monitoring tool, watching different protocols, including HTTP(S), SMTP, POP3, FTP, TCP. It can log the server performance, generate real-time reports, and notify you upon detection of problem or error.

 9)   Server Nanny Network Monitor 4.0.0
Reduce downtime and be the first to know when a server or network device fails. The last time you had a network or server failure how long was it before the problem was discovered? Don't wait for employees or customers to report the problem.