Thank you for the response. I think you missed my point. The desktop clients are all windows based. I use SME SERVER as the proxy. The windows clients are no longer updating their Avira antivirus software. I need a way of enabling the download of .idx files which the SME SERVER is not permitting at the moment.
Invalid URLThe requested URL "/update/idx/master.idx", is invalid.Reference #9.44ea112e.1392369431.d86ea07