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Include this script to your actual project and when SUP_Check() is called your script is going to download the next version and self update him self then restart. I am sorry but i did not bother to make a UDF or a more user friendly and flexible module since i still have a lot to go on my initial project 1- inside your project you include thoses line , all together and before your script actual code, beside your log system if you have one #include "self_update.au3" SUP_SetLogCallBack("_log") ; optional , used to send log to your allready log system if success self loggin is disable SUP_SetCheckCallBack("SUP_DownloadProgress") ; optional , will send the % of the download in progress SUP_Start("VALID HTTP URL To YPOUR NEW FILE","DOWNLOAD FULL FILE PATH NAME") ; mandatory 2- Now anywhere in your script you call this line to check for a newer version $fileVersionUrl: is if your using a custom web page to send fast information on the file like version that optional, if empty will always update when check $parentGui="": the self updated will create a gui with a progress bar and try to attach it self to the $parentGui , that optional SUP_Check($fileVersionUrl="",$parentGui="") 3- to check if your script has just restarted after a update if IsDeclared("updateComplete") then ConsoleWrite("Update Complete Sucess Bravo!") endif File: SUP_SelfUpdate.au3 The script can be compiled alone for debug purpose , look for 1 line to uncomment inside the script if running alone #Region ;**** Directives created by AutoIt3Wrapper_GUI **** #AutoIt3Wrapper_outfile=e:SelfUpdate.exe #AutoIt3Wrapper_Change2CUI=y #EndRegion ;**** Directives created by AutoIt3Wrapper_GUI **** #include-once ;*************** Line to be use inside your own project************ ; ;~ #include "self_update.au3" ;~ SUP_SetLogCallBack("_log") ;~ SUP_SetCheckCallBack("SUP_DownloadProgress") ;~ SUP_Start("e:SelfUpdate_FF.exe",@TempDir&"SelfUpdate_FF.exe") ; ;******************************************************************* Global $SUP_LOGS_CALL[1] = [0] Global $SUP_DOWN_CALL[1] = [0] Global $SUP_URL Global $SUP_FILE Global $SUP_INFO_FILE Global $SUP_DEST_FILE Global $SUP_PID ;**************Uncomment to self debug that script alone************* ;~ SUP_Start(@ScriptDir&"SelfUpdate.exe",@TempDir&"SelfUpdate.exe") ;******************************************************************** Func SUP_Start($SUPURL,$SUPFILE) $SUP_URL = $SUPURL $SUP_FILE = $SUPFILE $SUP_INFO_FILE = $SUP_FILE&".info" if $CmdLine[0] > 0 Then Switch $CmdLine[1] case "update" SUP_InitInfo() if Not ProcessWaitClose($SUP_PID,30) Then SUP_Log("UPDATE - Could not complete since """&$SUP_DEST_FILE&""" will not close",false) Exit EndIf if Not FileCopy($SUP_FILE,$SUP_DEST_FILE,1) Then SUP_Log("UPDATE - Could not copy the new file to """&$SUP_DEST_FILE&"""",false) Exit EndIf Run($SUP_DEST_FILE&" updatecomplete") exit case "updatecomplete" SUP_Delete() ;~ SUP_Log("UPDATE - Complete sucess") Assign("updateComplete",true,2) EndSwitch ;~ Else ;~ SUP_Check() ;for testing to be remove when linked with main EndIf ;~ sleep(5000) EndFunc Func SUP_InitInfo() local $data = FileRead($SUP_INFO_FILE) $data = StringSplit($data,"|") if $data[0] <> 2 Or $data[1]="" or $data[2] = "" Then SUP_Log("UPDATE - Info File is invalid") sleep(4000) exit EndIf $SUP_PID = $data[1] $SUP_DEST_FILE = $data[2] EndFunc Func SUP_Delete() FileDelete($SUP_FILE) FileDelete($SUP_INFO_FILE) EndFunc Func SUP_SetCheckCallBack($funcCallBack) ReDim $SUP_DOWN_CALL[$SUP_DOWN_CALL[0]+2] $SUP_DOWN_CALL[0] += 1 $SUP_DOWN_CALL[$SUP_DOWN_CALL[0]] = $funcCallBack EndFunc Func SUP_Check($fileVersionUrl="",$parentGui="") ;~ if $RUN then return local $version = FileGetVersion(@AutoItExe) local $nextVersion = "always update" if $fileVersionUrl <> "" Then $nextVersion = BinaryToString(InetRead($fileVersionUrl,1)) ;~ SUP_Log($version&" "&$nextVersion) if $nextVersion = "" Or $version = $nextVersion Then SUP_Log("UPDATE - No new version found") Return EndIf SUP_Log("UPDATE - New version found") SUP_Log("UPDATE - Downloading version "&$nextVersion) local $size = InetGetSize($SUP_URL,1) FileDelete($SUP_FILE) local $handle = InetGet($SUP_URL,$SUP_FILE,1,1) local $byteRead, $error = false #include <WindowsConstants.au3> GUICreate("ProgressBar",200,30,-1,-1,BitOR($WS_MINIMIZEBOX,$WS_DLGFRAME,$WS_POPUP,$WS_GROUP,$WS_CLIPSIBLINGS), BitOR($WS_EX_TOOLWINDOW,$WS_EX_TOPMOST),$parentGui) local $progress = GUICtrlCreateProgress(0,0,200,30) GUISetState(@SW_SHOW) local $pct do Sleep(250) $byteRead = InetGetInfo($handle, 0) if @error Then $error = true ExitLoop EndIf GUICtrlSetData($progress,$byteRead*100/$size) $pct = Round($byteRead*100/$size,2) SUP_Log("UPDATE - Percent done: "&$pct) If $SUP_DOWN_CALL[0] > 0 Then For $i = 1 to $SUP_DOWN_CALL[0] Call($SUP_DOWN_CALL[$i],$pct) Next EndIf Until InetGetInfo($handle, 2) GUIDelete() if $error or Not InetGetInfo($handle,3) Then InetClose($handle) SUP_Log("UPDATE - Downloading next version failed") SUP_Delete() Return EndIf InetClose($handle) FileDelete($SUP_INFO_FILE) FileWrite($SUP_INFO_FILE,@AutoItPID&"|"&@ScriptFullPath) SUP_Log("UPDATE - Exiting to complete update") Run($SUP_FILE&" update") if @error Then SUP_Log("UPDATE - Unable to open the new file") SUP_Delete() Return endif SUP_Log("UPDATE - Exiting") sleep(1000) Exit EndFunc Func SUP_SetLogCallBack($funcCallBack) ReDim $SUP_LOGS_CALL[$SUP_LOGS_CALL[0]+2] $SUP_LOGS_CALL[0] += 1 $SUP_LOGS_CALL[$SUP_LOGS_CALL[0]] = $funcCallBack EndFunc Func SUP_Log($msg,$useCallBack=true) If $useCallBack And $SUP_LOGS_CALL[0] > 0 Then For $i = 1 to $SUP_LOGS_CALL[0] Call($SUP_LOGS_CALL[$i],$msg) Next Return EndIf if @Compiled Then MsgBox(0,"Message",$msg) ConsoleWrite($msg&@CRLF) EndFunc