To dynamically set the title of a RCP application, the following code snippet is useful:
private String fileName = "unknown.daf";
public WorkbenchWindowAdvisor createWorkbenchWindowAdvisor(IWorkbenchWindowConfigurer configurer) {
IWorkbenchWindowConfigurer windowConfigurer = configurer;
String title = "DA-FormMaker - " + fileName;
windowConfigurer.setTitle(title);
return new ApplicationWorkbenchWindowAdvisor(configurer);
}
The window title can be set via the “_IWorkbenchWindowConfigurer”. You can get a reference to it in the “_ApplicationWorkbenchAdvisor”. The result looks like this (obviously 
):
