Occasionally when running an exe halfway through the exe I'm getting the error ff.au3 error __FFWaitForRepl ==> Error TCPSend /TCPRecv :-1 There seems no consistency, sometimes I do get this but sometimes I don't. What does this mean and how I could rectify it? Problem only seems to only occur on scripts thats been made into an exe file, but when run the script itself by pressing F5 on SCiTE, it is fine there. Is this a connection related issue?