E3 Admin is the module responsible for monitoring and controlling an E3 Server. It is depicted by the icon on Windows Notification Area. This module starts whenever a user logs in Windows, or whenever an E3 Server service starts.

E3 Admin is also responsible for handling the following Domain control options via command prompt: e3admin <domain_name> [options] or e3admin [options] <domain_name>. Command prompt options are described next:

•-start or /start: Starts a user-informed Domain. This option is not mandatory. Even when it is not informed, the Domain is started

•-viewer or /viewer: Executes E3 Viewer for the application

•-load: Similar to the -start option, but it only loads a Domain, without executing it. It cannot be used with the -viewer option

•-stop: Stops the Domain in execution, if there is one. This option must be used alone

•-close: Stops and closes the Domain in execution, if there is one. This option must be used alone

•-refresh: Forces a Domain to update without using an E3 Viewer

•-help: Shows a dialog box with command prompt options for E3 Admin, as in the next figure

Dialog box with E3 Admin's command prompt options

If the -load, -start, or -viewer options are used, Windows 7 SP1 or later may ask for an Administrator authorization (a process known as privilege elevation) whenever E3 Admin has not been started by a system Administrator user (and depending on Windows User Account Control configuration).

If the logged in user is not an Administrator and Windows User Account Control configuration does not allow the authorization window, E3 Admin itself displays an error message, such as the one on the next figure.

E3 Admin error message

If there are Domain restrictions, the -load, -stop, -refresh, and -close options also ask for an E3 user login.