title: DLL load failed for pytables
body: <p>I get the following error when running code containing pytables:</p>
  
  <pre><code>Traceback (most recent call last):
  File "C:\Users\pierr\python354\lib\site-packages\pandas\io\pytables.py", line 469, in __init__
  import tables  # noqa
  File "C:\Users\pierr\python354\lib\site-packages\tables\__init__.py", line 90, in &lt;module&gt;
  from .utilsextension import (
  ImportError: DLL load failed: The specified procedure could not be found.
  
  ...
   File "C:\Users\pierr\python354\lib\site-packages\pandas\io\pytables.py", line 472, in __init__
  'importing'.format(ex=str(ex)))
  ImportError: HDFStore requires PyTables, "DLL load failed: The specified procedure could not be found." problem importing
  </code></pre>
  
  <p>python version 3.5.4 |
  tables version 3.4.2 | windows 10</p>