Getting the Aptana Help Server working on Windows Vista

Overcame a minor irritation - I kept getting an HTTP 500 internal server error from Aptana's built-in help documentation server after installing Aptana on my Windows Vista system. After some fiddling around with the Help Server's host name and port, I found the sweet spot by setting the host name to "localhost" and leaving the port number field blank, allowing Aptana to pick its own value.