OS: Win7 (same issue on multiple computers) Using GUIOnEventMode Here is how I create the input and edit   #NoTrayIcon #include <StaticConstants.au3> #include <GUIConstantsEx.au3> #include <WindowsConstants.au3> #Include <GuiButton.au3> #include <GuiTab.au3> #include <EditConstants.au3> Opt("GUIOnEventMode", 1) _main() Func _main() $main = GUICreate("main",368,343,-1,-