For the past year we have been using Netsaint which is a Linux based program that monitors computers, routers and switches and sends alert emails when those devices go down (or are no longer pingable). We've decided to migrate away from Linux so I am trying to find something to take it's place. Unfortunately Netsaint was free. Is there anything out there that is similar that would run on a Windows Server? It's a great program. It's very valuable to know when a server goes down or a data circuit goes down.