After you install the Switch Watchdog as a service in the installer, the Server need not to be installed as a service anymore.
At startup, the designer checks if the watchdog is running. If the watchdog is not running, the designer starts the watchdog as a background application. The Watchdog starts the Server almost immediately and the designer connects to the Server.
Be careful though:
When you quit the Switch designer, you will be asked whether you want the server to keep running. If you choose No, the server will terminate.
The Switch designer next sends a message to the Switch Watchdog to quit.