I'm starting to look into Communicating between applications from Maya. So If you’re looking to install the COM python module for Maya, here's how I got it working.
Get the appropriate installer here
For Maya 2012 64 bit get the pywin32-217.win-amd64-py2.6.exe
For Maya 2012 32 bit get the pywin32-217.win32-py2.6.exe
Run the downloaded executable, it should install to your C:\Python26\Lib\site-packages.
Copy the contents of that folder to your C:\Program Files\Autodesk\Maya2012\Python\lib\site-packages.
That should do it!
Of course be aware of what other packages you had installed previously in both site package folders, if you're concerned about overwriting something.
Get the appropriate installer here
For Maya 2012 64 bit get the pywin32-217.win-amd64-py2.6.exe
For Maya 2012 32 bit get the pywin32-217.win32-py2.6.exe
Run the downloaded executable, it should install to your C:\Python26\Lib\site-packages.
Copy the contents of that folder to your C:\Program Files\Autodesk\Maya2012\Python\lib\site-packages.
That should do it!
Of course be aware of what other packages you had installed previously in both site package folders, if you're concerned about overwriting something.