Accept wildcard sub-domians
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I am running a windows server with plesk on it.

I have a domain that when I create a user I want to give them a subdomain. ie: user "joe" signs up. I would then like to give him a sub-domain of joe.mysite.com. Now In my code I now how to redirect them to the proper place, but I still need my server to accept any sub-domain that comes in.

How would I do this with a windows, plesk set up. I do have full control of the server if this makes a difference.