@Eric,
My activation.dat file is slightly different: a lot of tags have "adept:" in the tag name, for instance:
Code:
<adept:privateLicenseKey>
I will make a backup of the activation.dat file and remove the adept: part from the tag and see if it works.
You are wrong on base64: as the name suggests it encodes using 64 characters (6 bits at a time). Any other of the 64 selected characters is wrong and will give the mentioned error.
Update: Success!! I was able to extract the key and decrypt a book.
- Erwin