>>What do I need to do to a virtual directory to make the web address "subdomain.domain.com" get directed to it? I thought it would automatically do this, but it's just defaulting to my default web site instead.
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>I believe you have to enter those sub domains in your DNS server or at the ISP level if you don't have a DNS server.

But - how do you tell it which virtual to go to? Do you just direct the DNS entry for "subdomain.domain.com" to the address "123.456.789/subdomain"?