The possibility to set a reboot-routine under WTK-SFX-Installer and then reenter the PC in the WTK-RunOnce-Installer is a very, very old request from me to Lego.... Edit: if you are using WPI you don't need to make a SFX-installer: put de script in the "%wpipath% (folder Install) and set it to execute before the WPI-installation begins under "Options/Tools" It works just tested