I am trying to use imagex and pipe it's output to an edit box, but at runtime the GUI freezes and the edit control is only updated after the process has ended The command that I am using is as follows: (Note you have to the WAIK installed AND have a WIM file mounted in C:\Winpe for this to work!) #include <GUIConstants.au3> #include <Constants.au3> #Region ### START Koda GUI section ### Form= $Form1 = GUICreate("AForm1", 460, 249, 307, 321) $Edit1 = GUICtrlCreateEdit("", 40