Internet Explorer not working with 2 FTP virtual hosts on IIS7

FTP changed a lot in IIS7.  Here's a good guide to ensuring you have it completely setup:
http://learn.iis.net/page.aspx/309/configuring-ftp-firewall-settings/


And here's a good explanation of the differences between active and passive mode FTP:
http://slacksite.com/other/ftp.html 

IE doesn't switch between active and passive modes automatically, but you can change it with the instructions here:
http://compnetworking.about.com/cs/novellgroupwise/ht/setpassiveftpie.htm

So, in summary, IIS 7 behaves differently by default, and IE doesn't switch modes automatically.  You can either change the IIS configuration, or change the browser configuration.  (In most cases, I change the IIS configuration, because I don't control the browser used to access my sites.)

What I don't get was it was working fine with a single site, but suddenly adding a second FTP site made it stop working? Nothing changed besides adding the second site and virtual host names?

How do you setup the DNS for that virtual host name?

This is a stand alone box in a DMZ. I didn't have anything in the hosts file, but even when I tried adding the virtual host names to the hosts file as 127.0.0.1, IE still does not work with it.

I also have tried passive off and on with the Windows Explorer FTP function on and off in IE and no go as well.

Have you followed the guide in the link below to create both the first and second virtual hosts?

http://learn.iis.net/page.aspx/320/using-ftp-virtual-host-names/

I figured it out on my own.