# File lib/rails-installer.rb, line 237
  def start(foreground = false)
    server_class = RailsInstaller::WebServer.servers[config['web-server']]
    if not server_class
      message "** warning: web-server #{config['web-server']} unknown.  Use 'web-server=external' to disable."
    end
    
    server_class.start(self,foreground)
  end