Originally Posted by wallcraft
This was new to me too. A .pyw is a Windows GUI Python script, so you run it by clicking on it (rather than running it from the command line).
You do need to use python 2.6, or at least the 2.6 PyCrypto needs 2.6.
The Windows binary for PyCrypto 2.0.1 is corrupt. But, I did install Python 2.5.4 and the 2.5 version of PyCrypto and have successfully removed the DRM from a DRM infected ePub.