How To: Install PHP via FastCgi on IIS7
Folks,
I believe that you have aware the existence of FastCgi just like what Mr Risman shows you here.
Now, I would like to introduce you some useful "how to" tutorials and webcast.
Step by step tutorial: http://learn.iis.net/page.aspx/246/using-fastcgi-to-host-php-applications-on-iis7/
Webcast: http://edge.technet.com/Media/Installing-PHP-Applications-on-IIS7/
If you find that that tutorial is not too applicable, I'll introduce you more "real" webcast. In that webcast, they'll show you how to install one of the most famous Blog Engine in PHP, WORDPRESS on IIS 7.0.
You can prove it yourself that PHP can run well on Windows (IIS).
Here you go http://www.netometer.com/video/tutorials/windows-2008-wordpress-php-mysql-iis7/