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<h2 class="title">Requirements</h2>
<p class="para">
The extension is currently supported only on the following configurations:
</p>
<p class="simpara">Windows OS:</p>
<ul class="itemizedlist">
<li class="listitem">
<span class="simpara">Windows XP SP3 with IIS 5.1 and <a href="http://www.iis.net/extensions/fastcgi" class="link external">» FastCGI Extension</a></span>
</li>
<li class="listitem">
<span class="simpara">Windows Server 2003 with IIS 6.0 and <a href="http://www.iis.net/extensions/fastcgi" class="link external">» FastCGI Extension</a></span>
</li>
<li class="listitem">
<span class="simpara">Windows Vista SP1 with IIS 7.0 and FastCGI Module</span>
</li>
<li class="listitem">
<span class="simpara">Windows Server 2008 with IIS 7.0 and FastCGI Module</span>
</li>
<li class="listitem">
<span class="simpara">Windows 7 with IIS 7.5 and FastCGI Module</span>
</li>
<li class="listitem">
<span class="simpara">Windows Server 2008 R2 with IIS 7.5 and FastCGI Module</span>
</li>
</ul>
<p class="simpara">PHP:</p>
<ul class="itemizedlist">
<li class="listitem">
<span class="simpara">PHP 5.2.X, Non-thread-safe build</span>
</li>
<li class="listitem">
<span class="simpara">PHP 5.3 X86, Non-thread-safe VC9 build</span>
</li>
</ul>
<blockquote class="note"><p><strong class="note">Note</strong>:
<span class="simpara">
The WinCache Extension can only be used when IIS is configured to run PHP via FastCGI.
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</p></blockquote>
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