jfx_

Yep, but at the time the func is called it's only local defined Local $PETools = $AIK_Tools & "\PETools\" & $Arch _AikLang()

@ChrisR There shouldn't be a problem with Make-PE3 under x64 OS. A minor thing for your _AikLang() func: $PETools is a local variable inside _Go_PE3() func, so all FileExists return failure. $PETools may should be set as global variable, thought.