WinSW - WinSW is an executable binary, which can be used to wrap and manage a custom process as a Windows...
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Always Up - Run as a Service: AlwaysUp installs any Windows 2019/10/2016/8/2012/7/2008 GUI application as a Windows Service, starting it at boot and monitoring it to ensure that it is always running, 24/7, even if it crashes, hangs, or fails.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Shawl - Shawl can run arbitrary programs as Windows services without any fuss
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