Mention AddEx.

Examples/CodeDownloadFiles.iss

@@ -44,6 +44,7 @@ function NextButtonClick(CurPageID: Integer): Boolean;
 begin
   if CurPageID = wpReady then begin
     DownloadPage.Clear;
+    // Use AddEx to specify a username and password
     DownloadPage.Add('https://jrsoftware.org/download.php/is.exe', 'innosetup-latest.exe', '');
     DownloadPage.Add('https://jrsoftware.org/download.php/iscrypt.dll', 'ISCrypt.dll', '2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc');
     DownloadPage.Show;