Netscape and Internet Explorer are the most widely used Internet browsers in the world. Last year Netscape and Microsoft Company created a new technology, called Dynamic HTML. Dynamic HTML is the world of point-and-click, drag-and-drop. With Dynamic HTML, one can layer multiple images on top of one another, precisely control the layout of a Web page, and add new interactivity and much more without using Java. This can be accomplished by using existing technologies and features on the Web, including HTML, scripting, and object-oriented programming. Some conflict exists between these two products. One browser's technique cannot work with the other. Netscape Communicator's plug-in cannot work on Internet Explorer, because Internet Explorer uses Active X. They are created in different ways; each one has a different effect. In this thesis, a comparison will be made by designing several programs to demonstrate the difference between these two browsers.