IIS Host Headers using PHP

I'd like to add Host Headers to an IIS from PHP. Is there a way to access the metabase from P开发者_如何转开发HP or do I have to write a .NET command line tool and then invoke it from PHP?

Here's the background for the question. I have a Wordpress MU installation on Windows 2003/IIS6. The only way the setup will support subdomains (blog.mainsite.com) is by adding each subdomain to the site's Host Headers setting. Doing this manually every time a new subdomain is created is tedious and error prone, so I'm looking for a way to have it done through code.

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I've been down this road with PHP in the past and eventually ended up shelling out to either VB script or .NET console apps.

David Wang has a handy script that allows you to add/remove new host headers individually (which you can't do using adsutil.vbs).

How to manipulate (insert/replace/remove) list data type in IIS configuration (David Wang)