title: ChromeDriver: Custom Chrome Executable Path
body: <p>I'm using the portable version of Google Chrome.</p>
  
  <p>Since WebDriver expects the default installation path, it does not find the portable one which obviously is at another location:</p>
  
  <pre><code>Exception in thread "main" org.openqa.selenium.WebDriverException: unknown error: cannot find Chrome binary
    (Driver info: chromedriver=2.9.248315,platform=Windows NT 6.1 SP1 x86_64) (WARNING: The server did not provide any stacktrace information)
  Command duration or timeout: 11.13 seconds
  Build info: version: '2.35.0', revision: '8df0c6b', time: '2013-08-12 15:43:19'
  System info: os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_05'
  Driver info: org.openqa.selenium.chrome.ChromeDriver
  </code></pre>
  
  <p>How do I set a custom path to the <code>chrome.exe</code> file?</p>