You have one IP exposed to the internet which is assigned to
an IIS box. You have a brand new Java app and that resides
on another box. IIS doesn't support Java. What to do?
You have one SSL certificate for your IIS web site and wish
to add a Java app. What to do? Install IISRelayJ.dll as an
ISAPI Extension and off you go! IIS will proxy all the java
requests to your servlet container, SSL the response and
send the html back to the client browser.