1)   DEKSI Network Monitor 4.6.4
DEKSI Network Monitor is an advanced, powerful, and feature rich tool that monitors servers located on your LAN, WAN, and the Internet. Windows 9X, NT, 2000, XP, 2003 Server, Vista compatible and can monitor the servers with any operating system.

 2)   DEKSI Network Manager 4.9
DEKSI Network Manager is an advanced and powerful network monitoring tool. It can continuously monitor the state of your servers, various network services, databases and more over the network seven days a a week, twenty-four hours a day.