title: Python win32com don't know name of module
body: <p>I was looking for a python Zune(The windows media thing) api, when I looked at the COM browser in pythonwin. I found something called ZuneWmdu Type Library (1.0).
  I used makepy on that lib, it generated a file</p>
  
  <pre><code>9FE20C05-81CE-46D7-9C56-FD97A865BBB8x0x1x0.py 
  </code></pre>
  
  <p>in </p>
  
  <pre><code>python 2.7.3\Lib\site-packages\win32com\gen_py
  </code></pre>
  
  <p>I have no idea what to pass into </p>
  
  <pre><code> win32com.client.gencache.EnsureDispatch('???')
  </code></pre>
  
  <p>I tried calling </p>
  
  <pre><code>win32com.client.gencache.EnsureDispatch('9FE20C0581CE46D79C56FD97A865BBB8')
  </code></pre>
  
  <p>Resulting in an exception (pywintypes.com_error)</p>
  
  <p>(The x0x1x0 part of the .py file seemed unrelated)</p>
  
  <p>I tried the same with</p>
  
  <pre><code>win32com.client.gencache.GetModuleForCLSID('9FE20C05-81CE-46D7-9C56-FD97A865BBB8')
  and
  win32com.client.gencache.GetModuleForProgID('9FE20C0581CE46D79C56FD97A865BBB8')
  </code></pre>
  
  <p>Both returning None.
  I'm stuck here, I need to either find what the library is called (for itunes, you'd call:</p>
  
  <pre><code>win32com.client.gencache.EnsureDispatch('iTunes Application')
  </code></pre>
  
  <p>for example)
  or how to call the module with the GUID</p>
  
  <p>Or even someone to tell me that I'm doing something completely wrong.</p>