Hi. I am hoping to give this thread a jog. I had and have been using aMule for many years and it suddenly stopped working although I had changed nothing in the router and Mac firewall configurations. So after much fiddling around, I have deleted the application, downloaded it in .zip format from both of the two sources and in both cases, after unpacking the .zip folder, regardless of whether I use The Unarchiver, Archive Utility, Stuffit Expander or Pacifist, get the same error message as the two correspondents above. Is there any fix for this?