title: Failed opening required 'HTTP/Request2.php' (include_path='.;C:\php5\pear')
body: <p>everyone. I have some trouble in pear. 
  I test in my localhost(my localhost path is <code>e:\www</code>), my system is windows xp sp3, My php version is 5.2.11, the path is <code>C:\Program Files\phpStudy\PHP5</code>, I run <code>go-pear.bat</code> in this path and finished install the pear, now the pear path is in <code>C:\Program Files\phpStudy\PHP5\PEAR</code>(under the folder contains <code>.channels</code>,<code>.registry</code>, <code>OS</code>, <code>PEAR</code>, <code>.depdb</code>, <code>.depdblock</code>, <code>.filemap</code>, <code>.lock</code>, <code>go-pear.phar</code>), then I run <code>C:\Program Files\phpStudy\PHP5\PEAR_ENV.reg</code> and modify the php.ini, </p>
  
  <pre><code>; Windows: "\path1;\path2"
  include_path = ".;C:\Program Files\phpStudy\PHP5\PEAR"
  </code></pre>
  
  <p>After restart the apache,  I test a simple code which copy from pear's website.</p>
  
  <pre><code>&lt;?php
  require_once 'HTTP/Request2.php';
  
  $request = new HTTP_Request2('http://pear.php.net/', HTTP_Request2::METHOD_GET);
  try {
      $response = $request-&gt;send();
      if (200 == $response-&gt;getStatus()) {
          echo $response-&gt;getBody();
      } else {
          echo 'Unexpected HTTP status: ' . $response-&gt;getStatus() . ' ' .
               $response-&gt;getReasonPhrase();
      }
  } catch (HTTP_Request2_Exception $e) {
      echo 'Error: ' . $e-&gt;getMessage();
  }
  ?&gt; 
  </code></pre>
  
  <p>but it return </p>
  
  <pre><code>Warning: require_once(HTTP/Request2.php) [function.require-once]: failed to open stream: No such file or directory in E:\www\ct\1.php on line 2
  
  Fatal error: require_once() [function.require]: Failed opening required 'HTTP/Request2.php' (include_path='.;C:\php5\pear') in E:\www\ct\1.php on line 2
  </code></pre>
  
  <p>What's wrong is it? How to solve? Thanks.</p>