My website was down several times per day and when I check the application pool (IIS 7.5), I saw it was stopped and I must restart it manually. How can I setup application p
In IIS 8 and above, the startMode setting is now directly available from the Application Pool's Advanced Settings.
Changing the startMode to AlwaysRunning will automatically restart the Application Pool if it fails.
https://docs.microsoft.com/en-us/iis/configuration/system.applicationhost/applicationpools/add/#new-in-iis-75-and-later