The Web Design command rolls out a submenu containing the Generate ASPX Web Application command. This latter command generates all the files required to run an ASPX application, in the folder location you specify. A web browser will read the ASPX file that is the output document. C# code in this file will start a process whereby data in the source database or XML file will be transformed dynamically using an XSLT file in the ASPX package. The ASPX file (the output document of the transform process) will be updated with the latest data in the source database or XML file.
For more information, see ASPX Interface for Web Applications.