Or use the WinHTTP UDF to compare the created/modified date by sending a HEAD request to the server. Then you don't have to download the whole file. Functions you will need: _WinHttpOpen _WinHttpConnect _WinHttpOpenRequest ; $sVerb parameter should be HEAD _WinHttpSendRequest _WinHttpReceiveResponse _WinHttpQueryHeaders ; $WINHTTP_QUERY_LAST_MODIFIED