PHP: Windows Installation on IIS

Had a lot of fun setting up PHP on IIS.  Used the installer, even though every body seems to recommend installing manually, and putting files in strange (non-Windows) places.  Apart from divvying with a couple of PHP.INI settings, the only serious things I had to do was sort out the global PATH to include PHP, sort out default content (index.php), and also configure the PHP CGI program as an permitted Web service (in the IIS MMC snap-in) – this last is one thing that the installer should have done, and gave some strange permissions errors, but got it sorted.

PHP: Windows Installer (PHP 5.1.0 and earlier) – Manual