Wikipedia
FireDaemon Pro is an operating system service management application. FireDaemon Pro allows you to install and run most standard Windows applications as a service. These include regular standard Windows executables as well as applications written in scripting or pcode languages such as Perl, Java, Python and Ruby. FireDaemon is popular amongst the online gaming community for running dedicated servers such as Minecraft, Rust, and America's Army.
It is possible to add services to Windows without FireDaemon Pro or use other free tools found in the Windows Resource Kits. However, setting up services manually can be complicated and error prone as the Windows registry needs to be edited directly. Windows services by default will generally be restarted after a minimum of 1 minute has passed. However, FireDaemon Pro proactively monitors the application and ensures a restart in under 5 seconds. This can be critical when using server based applications such as web servers, ftp servers, etc.