If you want to see the icon for the service, in the Control Panel's Services application you can enable the Allow service to interact with desktop option. The POP3 service will continue to run even if you log off. The icon will disappear but will reappear the next time you logon as the same user. This is because the full path to the application is stored in the NT Registry. If you like this site, tell your friends.
All trademarks used are the property of their respective owners.