#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>

Local $hGUI = GUICreate("Запуск программы", 500, 200)
Local $idinput = GUICtrlCreateInput("notepad.exe", 0, 0, 500, 25)
Local $idbutton1 = GUICtrlCreateButton("Ok", 20, 50, 85, 25)
Local $idbutton2 = GUICtrlCreateButton("Отмена", 120, 50, 85, 25)

GUISetState(@SW_SHOW, $hGUI)

While 1
Switch GUIGetMsg()
Case $GUI_EVENT_CLOSE
ExitLoop
Case $idbutton1
ShellExecute(GUICtrlRead($idinput))

Case $idbutton2
ExitLoop
EndSwitch

WEnd