Damage Control

Many products within the Oracle E-Business Suite have screens that are built with Oracle Forms.  Oracle Forms can be run in either servlet mode or socket mode.  Apps 11i is based on Forms 6i and is configured to run in socket mode by default.  Apps 12 is based on Forms 10g and is configured to run in servlet mode by default. What are these modes, and which is better? What is Forms Servlet Mode? The Forms Listener Servlet is a Java servlet that delivers the ability to run Oracle Forms applications over HTTP and HTTPS connections. It manages the creation of a Forms Server Runtime process for each client, as well as network communications between the client and its associated Forms Server Runtime process. The desktop client sends HTTP requests and receives HTTP responses from the web server. The HTTP Listener on the web server acts as the network endpoint for the client, keeping other servers and ports from being exposed at the firewall.
http://blogs.oracle.com/stevenChan/2009/06/which_is_better_forms_servlet_or_socket_mode.html