Flash/Flex & PHP Socket Application Sandbox error -

i running socket server using php. socket server runs fine because can connect using php.

now, have flash application trying connect it:

            this.socket.addeventlistener(event.connect, onsocketconnect);             this.socket.addeventlistener(event.close, onsocketclose);             this.socket.addeventlistener(ioerrorevent.io_error, onioerror);             this.socket.addeventlistener(securityerrorevent.security_error, onsecerror);              try {                 this.socket.connect("myip", 9999);             } catch (ioerror:ioerror) {                 this.debuglbl.text += "ioerror1 "+ioerror.message;             } catch (secerror:securityerror) {                 this.debuglbl.text += "secerror1 "+secerror.message;             } 

when run application locally, works! however, when upload server sandbox security error (#2048). flash app hosted on same server socket server, , there cross domain policy file in place.

is possibly need use php proxy? had that, doc'd here. although did mention app's on same server , theres crossdomain.xml in place, i'm off mark there (btw, flash 10 needs different crossdomain.xml prev versions far know).