Standalone SWF and socket connection

Hi, I made a game where it receives data from a socket (through serproxy).
However, the standalone swf doesn’t allow me to connect and gives me this error: Error #2048.

I know it is a sandbox violation or something, but I’m really looking hours for a solution and I can’t find any clear instructions what to do!

I just want to run the swf on the computer without running the fla. in the Flash program first!

If someone can help me, thank you!!

T.