Hi friends! thanks to all of you. I tried to understand what you suggested but some becuase of the language , some because I'm not expert in matter of computer, I 'm afraid not having understood. It is not simple for me ...what do you mean when you say:"run HTML" for instance? Anyway I think I have understood that main movie and imported swf movie(the one I imported as "new element") must be in the same folder when I upload the file in my filehosting site. In fact that seems having worked for a while: at last I succeeded viewing the full movie(complete with the imported one) in the web after uploading it. But after some minutes it disappears. However I'd like to thank you indeed because I learned something new anyway. I'll try to better interpretate what you have written.I have some special trouble understanding what RonaldCrow said most of all(but it's my fault naturally).many greetings and thanks from Rome