Message: Can't start HTTP listener on address 127.0.0.1:80
Explanation: Some other process (Apache, IIS, Skype, another SQL Anywhere engine, etc) is already using TCP/IP port 80.
Either tell that process to stop using port 80 or
tell Foxhound to use a different port.
For example, to stop Skype from using port 80:
Open the Skype window,
click on Tools - Connection options...
uncheck the "Use port 80 and 443 as an alternatives for incoming connections" option,
click on Save button and
restart Skype to make the change effective.
What HTTP port should I use for Foxhound?
How do I tell Foxhound to use an HTTP port other than 80?
IANA port number assignments
Database server shutdown due to startup error