During the installation of FileMaker Server 13 (on a Windows Server 2012 server), a check is performed to see if port 80 is in use. Since this is a web server, port 80 is in use, but only for specific URL's. I temporarily disabled all websites, but the check is still failing.
Running netstat -abn on the server, results in System, PID 4, still listening on port 80. No other processes are using this port.
Is there a way to install FileMaker Server 13 and skipping the check? Is there another solution for this problem?