Trial
AlwaysUp 10.5
AlwaysUp runs your application 24/7 as a Windows Service, monitoring it constantly to ensure 100% uptime. It will automatically restart your application if it crashes, hangs, or uses too much memory, and will send email to inform you of the event.
Free
http-ping 9.0
http-ping is a small, free, easy-to-use command-line utility that probes a given URL and displays relevant statistics. It is similar to the popular 'ping' utility, but works over HTTP/S instead of ICMP, and with a URL instead of a computer name/IP.