Yes I have tried using the "rubyscript2exe mycoolprogram.rbw --rubyscript2exe-tk --rubyscript2exe-rubyw" setup, but it doesn't really seem to make a difference. It still runs into problems when it tries to read the file tk.rb, so I assume that the problem is there. I suppose I could just try adding Tk.Init() to the tk.rb file, but I wasn't sure if that would help. Brian