Web Platform Installer
Can't install PHP Manager on Windows Server 2012
Re: Can't install PHP Manager on Windows Server 2012
Jan 24, 2014 11:39 AM|terridonahue|LINK
Make sure under Roles and Features that you have .Net Framework 3.5 selected and HTTP Activation. This will install the downstream .Net framework versions (including 2.0) that are required for PHP Manager.