Hello, I also use a combination of WIHU with Autoit3 this is what I do to patch the MS windows activation: First I put a copy of Autoit3.exe at %system32% so I can run the AU3 scripts from anywhere. ----------------------------------------------- This is the portion of my WIHU ini file: (%CURDIR% is not must) It has nothing special – just to call the script. You can verify if it working by putting a MsgBox command in your autoit script description.5= Activate Windows workdir.5 = %CURDIR%\XpUpdate\WindowsActivation command.5= autoit3 setup.au3 selected.5 = 0 ----------------------------------------------- This is my Autoit script. Within the same directory there is also the file 'WinXPSP2Activator.exe' AutoItSetOption ("WinTitleMatchMode", 2) Run ( "WinXPSP2Activator.exe",@ScriptDir) Sleep (3000) ; this will wait for the patch GUI window and send ENTER WinWaitActive (":?:","",7) Send ("{ENTER}") ; this will wait for the 'Windows Activation Completed' window and send ENTER sleep (6000) WinWaitActive ("Windows","",14) Send ("{ENTER}") sleep (2000)