Click the first link from the left to download a test file, then refresh the page. The download counter will increase by 1.

Click the second link from the left to view the error page when the (optional) download limit has been reached for that file.

Click the third link from the left to view the error page when a file is not found.

Click the fourth link from the left to view the error page when the script attempts to access a file not designated for download.