Win 7 64bit, ESS 4 64bit. Epson Artisan 800 network printer/scanner. ESS is blocking Epson Scan. Program cannot start unless ESS firewall is disabled. Using interactive mode, Epson Scan software is allowed traffic. Both the computer and the printer has IP's assigned in the Trusted Zone IP range. I can turn off firewall, then start program, with the program open, turn on the firewall again. The program will work. But once I close the program, I cannot open it again unless I turn off ESS firewall first. It would appear ESS is preventing the program from starting. Any help would be greatly appreciated!