4.1 How Oracle Application Server Forms Services Launches a Forms Application

When a user first starts an Oracle Forms application (by clicking a link to the application's URL), the baseHTML file is read by Forms Servlet. Any variables (%variablename%) in the baseHTML file are replaced with the appropriate parameter values specified in the formsweb.cfg file, and from query parameters in the URL request (if any).

You can easily modify the configuration files with Oracle Enterprise Manager 10g Application Server Control Console as your needs change.