I have to say, I've read through the forum about all the issues with installing 3CX. I can't for the life of me get it going. I have Chillidog (wifi hotspot installed and running) using IIS 5.1 and PHP 5.2.3, with freeradius & Mysql running. Chillidog looks similar in terms of its structure to 3CX, chillidog is able to run on any webserver. Why can't the developers let all the extensions be added to an existing PHP installation and then allow 3CX to be added to the existing webserver and allow access from port 80??? I tired this, but the program phpShield.dll I am not sure if this is compatible with PhP 5.2.3 Its annoying that the developers have no given flexibility to run this on IIS. I am having no end of problems with PHP and Apache. I think its because of the existing PHP installation. The following error upon trying: http//:localhost:5481 szAppName : Apache.exe szAppVer : 184.108.40.206 szModName : php5ts.dll szModVer : 220.127.116.11 offset : 0009a370 I give up, this looks a good program but because it interferes with existing PHP running, its only really only capable of running on a machine all by itself.