Comments by Senthil Sambandam (Top 4 by date)

Yes, If the destination system is configured with network and system is able to communicate to the db then installed application start work automatically.

Okay use app.config instead of web.config.

- The setup will create in bin folder of the setup project
- Normally for external database, we use web.config file for connectionstring declaration. The web.config file need to add as like reference file setup project. So after installing the setup, you will get web.config file also, From the web.config file you can connect to the external db.