@Ok3ch, its nothing to do with attitude, I'm just tooooooooooooo bored of the stereo-type tech mailing lists in KE. There are some serious guys on this list but things like torrents architecture is an easy101 for many here. I know how e.g Limewire etc works but I wanted to to go deeper into the proper architecture and I ain't going to use goole results for this. How come only @Martin/@Obbayi/@Rad are normally the only ones who try and respond and really the most helpful people on list. My questions are a serious indicator of what free scripts are doing to potential programmers. @Pedersen, thnks for that. Even without providing an internet link, when you mention hash tables and sockets, it already starts to make some sense. Wish you could expound more, if you have the time. @Kariuki, thnks for the links. Listers, pls keep in mind that of us were using the internet way back in 1995. So if I want to get my results on what the internet offers, I don't need to place any question onlist. This WILL be the case going forward now. #$¢%&£$@!!!!! Rgds. :-))