Defines an alternative Filename for the HTML page. If an extension is not specified then the default .htm, or the extension specified in the Media object is used. If a filename is not specified, then the object code is used. For example, if the code is 1234, then the filename would be 1234.htm. If just an extension is specified, then the object code is used as the filename with the specified extension.
Note: This field is only active if the Start New HTML Page check box is selected.
The WebFilename element corresponds to the "Filename" field, on the HTML tab, of the Topic object.