Usage

To create a Windows Service from an executable, you can use sc.exe:

sc create InternetCheckService binPath="<path_to_the_service_executable>"
sc start InternetCheckService

nssm install InternetCheckService "<path_to_the_service_executable>"

As for me, I use this path C:\bin\notify-con.exe.

Note: you need to run this service as user service, so that you can send a notification to the user.