title: PhpStorm says "PHP version Not installed" with PHP 5.6 on Windows
body: <p>I downloaded an msi installer for PHP version 5.3 for Windows from <a href="http://windows.php.net/downloads/releases/archives/" rel="nofollow noreferrer">here</a>. After installing it, I could have PhpStorm to recognize it without any problem (successfully adding an interpreter). Now, I want to install version 5.6. There is no msi for this version, so I've downloaded a (multiple actually) zipped file. I unpack it, then go to PhpStorm, add interpreter, and when I select the <code>php.exe</code> file, it tells me "PHP version: Not installed".</p>
  
  <p>I'm running a x64 Windows 10. I've tried both the x64 (nts and non-nts) versions in the download page, as well as the x86 versions. I also tried changing the environment variable <code>PHPRC</code> in case that's what the msi installer was doing. All with no luck.</p>
  
  <p>Any idea of what's going on?</p>