Thank you Sascha for your reply. Let me describe my wish in more details : - client would be running on Windows platform - server on Linux (as I would use existing jabber server) I wouldn't use POST-GET using PHP since I'm building this for larger amount of users. Also, I'm not coding a client in PHP, I'm doing it in C++ Builder. I've chosen C++ Builder because of VCL, quicker development using existing components. There won't be any permissions security, like normal users and moderators, just users. Users which can communicate with each other using private messages, chatting in public rooms or creating their own rooms with limit (number of users). Since I've mentioned C++ Builder, are there any jabber libraries which can help me implement it's protocol? Or should I use simpler IM protocol for this task? Thank you <div>On 3/28/06, Sascha <<a href="mailto:sascha_sauren@arcor.de">sascha_sauren@arcor.de </a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">well one point open source and jabber is the point that its open for all like the name says ++ many minds work togehter to make this product as well ass possible -- a few niinds that sees a bug that them can use (maybe by an exploit) b4 someone fixes it ++ but again many minds working on it to do fix it compare the windows(not open source) buglist and securityfiixes with those from linux(open source) ok u could also compare the anount of users that uses windows and the amount of linux users... anyway the coice of the weapon is ur´s, choose those that can deliver what u need, in ur case jabber would be more than enough. u could also choose from a wide range of other open source socket servers even a push pull (POST-GET) with php would be possible which than has the PLUS that u dont need expensive webspace and it mustend be slower than a socket connection but a MINUS for support and bugfixing by others! but ask urself some questions.. what do u have.. so what possible options has the programming language u are working in (u dident tell which it is) what do u need... u said a messenger... well ich have msn installed-> i can webconference -> i can do internetphone ->i can xchange files...... u said a chat wiht custom rooms... well beneath the options from what i said about a messenger... here the most important Q is ->what do u think about the usermanagment who wil have which rights to do what where and when und which conditions.. (implemented serverside if u do so with an simple but effective php u have to programm that all alone or ectract that from somewhere else.what can be good or bad.. good no one know it , bad someone will find a security bug) iam flash/openlaszlo/AJAX developer... so more working on the web-based client side (in my less freetime) and can say that fo my programming languages the XML structure of XMPP is wounderfull to handle Ok i must say iam an xPath fan.. so i love XML 4 its nativity but (and that belongs my programming languages) i wouldent have an option to implement videoconferencing/inetphone for my needs without client sided application installing and that with any kind of protocoll... or i must use the flash communication server if u are using C++ Delphi Kylix Java .... u could also implement those features. however.. US-Gpverment is using and trusting Jabber also as many other Big Companys do... XMPP is easy to use and has a good mailinglist(JDEV) for flash(macromedia) there are many other socket server i would ever choose Jabber but if videoconferencing is needed i must wheter use the FCS (very expensive) or switch my programming lang. btw i love to develop but as far i see no reason about: securitylags easyier way of usage and handling to the customer and my workflow or rebuild commercial software as open source ... i see no need for REcreating the wheel. Franjo Stipanovic schrieb: > Hello, > > I wish to implement IM feature in my application. > > It would have following features: > - private messages > - chat rooms (also the ability for user to create chat room) > > Please, tell me, what do you guys (& girls?) think it's the best do to > and I'm I wrong? > > - better not to re-invent things and use existing open-source protocol > - use jabber protocol and (jabber) server application as a server > - look at (jabber) client application and implement mentioned features > in my application > > Doesn't sound like much work, does it? > > Thank you! > > With respect, > Franjo Stipanovic > </blockquote></div>