I have also the same utility ffmpeg.exe to file conversion but i have one problem is that i have to first save the uploaded video file at Application Web Server and then convert it into flv and then save at Flash Media Server(located at different location) so that they can play through streaming later on. currently, i am uploading flv files directly to the Flash Media Server but problem with other file formats because they will have to be converted into flv to play properly. i need to do conversion while uploading and directly upload to the Flash Media Server, how can we do that any idea?