title: How do I install PyCrypto on Windows?
body: <p>I've read every other google source and SO thread, with nothing working.</p>
  
  <p><code>Python 2.7.3 32bit</code> installed on <code>Windows 7 64bit</code>. Download, extracting, and then trying to install PyCrypto results in <code>"Unable to find vcvarsall.bat".</code></p>
  
  <p>So I install MinGW and tack that on the install line as the compiler of choice. But then I get the error <code>"RuntimeError: chmod error".</code></p>
  
  <p>How in the world do I get around this? I've tried using pip, which gives the same result. I found a prebuilt PyCrypto 2.3 binary and installed that, but it's nowhere to be found on the system (not working).</p>
  
  <p>Any ideas?</p>