remove change default lane post global.asax

i'm building cms asp.net mvc wish grant users collect page wish displayed default user initial visits site.

i set default lane global.asax, (for example):

routes.maproute(
                "default",                                              // lane name
                "{controller}/{action}/{id}",                           // url parameters
                new { controller = "home", movement = "index", id = "" }  // parameter defaults
                );

but following after i wish change default lane an httpmodule formed something i collect information source; i change default lane primarily setup global.asax? too late change routing list httpmodule i comprehend feature?