title: php.exe is not recognized:create webapp
body: <p>I am toying with my new install of yii framework, and trying to compile my first webapp through the command line.  when I run <code>yiic webapp ../testdrive</code> i receive this error in my console:</p>
  
  <pre><code>"php.exe" is not recognized as an internal or external command, operable program or batch file
  </code></pre>
  
  <p>Do I need to edit my php.ini file?</p>
  
  <p>I am currently running on WAMP Webserver on Windows 7</p>