Abstract: A method, apparatus, computer system and computer program product that enable a server to provide information and control the display of the information at a client dynamically without being persistently connected to the client. Functionality of the user interface can be changed without changing a client application displaying the information, installing a new application on the client computer system, or maintaining a persistent network connection between the client computer system and the server computer system. A control program running on the client computer system is configured to operate according to instructions provided by the server. The instructions provide information such as particular modules to present within the user interface and the layout of windows that provide access to the modules. The server also provides instructions for responses to be performed upon receiving events.