The AVChat support did the installation on my dedicated server (in an hour !) and the component was ready and the program worked without any problems. I had to call the support to adjust some details of presentation and especially translation (I'm french) . Each time the answers were immediate and very effective. I wish I had this response more often in extensions publishers !!! ... At least the videochat is intagrated to my site, easy to use and excellent quality ... what more!