Just installed Expat Shield on one Windows 7 PC here at home. Everything fine.
Then installed on second W7 PC (on the same home network).Everything
worked there too.
But I then uninstalled it on the second pc. When I later re-installed, the installation went fine but when I click on the Connect/ON menu item, or on the Expat Shield Launch icon, the system is busy for a few seconds but no connection is made. It stays Disconnected.
I re-installed a few times, to no avail. I am not trying to run Expat simultaneously on both PC's.
Meanwhile, all is still fine on the first PC.