The web page that sends you the file is called "securedownload.ez". The button takes you there via a web form. There is no "file name" to specify on the url. The item you are downloading is sent as a hidden form variable. The file you are downloading is not stored within the web directories visible to your browser. That is why we stream it directly to your browser. This is done for security reasons. The store files are impossible to get to from a web browser, without going through the system.