title: WordPress multisite on Windows IIS (8.5.96) server crash - PHP 5.6 wincache.dll 1.3.7.0
body: <p>I'm running a WordPress multisite(4.5.3) on Windows IIS (8.5.96).</p>
  
  <p>Every now and then the server crashes with a Wincache error. I have updated both PHP and Wincache components on the server. Because at the moment I have to observe the server 24/7.</p>
  
  <pre><code>Faulting application name: php-cgi.exe, version: 5.6.22.0,time stamp: 0x57468660
  Faulting module name: php_wincache.dll,version: 1.3.7.10, time stamp: 0x56ccce50
  Exception code: 0xc0000005
  Fault offset: 0x00015247
  Faulting process id: 0x8cc
  Faulting application start time: 0x01d1f8244e589ffc
  Faulting application path: C:\Program Files (x86)\PHP\v5.6\php-cgi.exe
  Faulting module path: C:\Program Files (x86)\PHP\v5.6\ext\php_wincache.dll
  Report Id: 7fbf700b-6418-11e6-80cc-005056b77a12
  Faulting package full name:
  Faulting package-relative application ID:
  </code></pre>
  
  <p><strong>Server:</strong></p>
  
  <pre><code>-Windows Server 2012 R2 Standard
  
  -Installed memory Ram 4 Gb
  
  -Php-cgi.exe   (5.6.22.0)
  
  -Wincache.dll   (1.3.7.10)
  </code></pre>
  
  <p><strong>IIS:</strong></p>
  
  <pre><code>-IIS 8.5.96
  
  -Php 5.6
  </code></pre>
  
  <p><strong>IIS Setup:</strong></p>
  
  <pre><code>-Idle timeout 300
  
  -Activity timeout 300
  
  -Request timeout 300
  
  -Application pool &gt; Recycling 20 min.
  
  -Application pool &gt; Idle time-out 18 min.
  </code></pre>
  
  <p><strong>Wordpress and plugins used:</strong></p>
  
  <pre><code>-Wp multisite 4.5.3
  
  -Atom Linkedin (1.0.0)
  
  -Contact form 7 (4.3.1)
  
  -Custom Facebook Feed (2.3.10)
  
  -Redirection (2.4.3)
  
  -Rename wp-login (2.5.5)
  
  -Revolution Slider (5.0.6)
  
  -W3 Total Cache (0.9.4.1)
  
  -Wordfence Security (6.1.14)
  
  -WordPress MU Domain Mapping (0.5.5.1)
  
  -WP-Mail-SMTP (0.9.5)
  
  -Yoast SEO (3.0.7)
  </code></pre>
  
  <p>Is it a server issue or perhaps a misconfiguration? Or is it a php, WordPress or any other software issue? </p>