Hi,
So far as I remember, you can run external exe for example after setup finish, - one way to customize environment
second way - on application start, check the config app and start the own written setup wizard
Also.. So far as I remember, In past installshield support scripting and possible to generate new config app.

My suggestion for this case, when application start - analize existing config.app file (for example add option - Customized = false)
If this option exist in config app - start the own wizard, setup database access and so on, then when database connection success, all pathes in order, change config app option to Customized=true. I made this way in my last app

Denis

>Hi,
>
>I have a VS 2008 Installation proyect. I need to deploy a WPF program.
>
>I want to know if there is any way to modify the app.config file after the installation in order to check the DB file full path in the target computer and writte it in the config file data acces node.
>
>Thanks.