Microsoft's ASP (Active Server Pages) is a way to combine HTML, scripts written in JavaScript or VBScript, and ActiveX controls to dynamically serve HTML. When a browser requests an ASP page from a Microsoft Web server, the server interprets the ASP code and sends the resulting HTML to the requesting browser. For more information on ASP, see Microsoft's ASP overview pages, as described in HTML and Web technologies resources.
A block of ASP code begins with <% and ends with %>. If View > Invisible Elements is selected, Dreamweaver displays an ASP icon in the Document window to mark the location of ASP code.