Article of interest: "The Easy Way To Install PHP on Windows [IIS]"
If anyone is still interested in using IIS as their testing web platform, the following article over at SitePoint may be of interest. :
The Easy Way To Install PHP on Windows [IIS]
By Louis Simoneau
"Earlier this year Microsoft released a small piece of software called the Web Platform Installer (Web PI)—a dead-simple way to install a complete suite of web software on your Windows machine. It offers IIS with a number of extensions, SQL Server, ASP.NET, PHP, and a wide range of free web applications and tools. <!--
--> As I’ve already mentioned, there’s no need to worry about dependencies. If the Installer detects that a necessary component is missing from your selection, it will grab it for you. For example, this pleasant surprise: the Installer will automatically download and install MySQL if you’re installing an application that requires it (such as Drupal or WordPress)."