ePubs are specially crafted zip archives whose first file is an uncompresssed "mimetype" file. Unfortunately, many of the DRM encoded Adobe Adept and Barnes & Noble ePubs are not "proper" zip archives in that the names of some files in the zip central directory do NOT match the local name given in archive itself, or they do not have an uncompressed mimetype file as the first file in the archive. These types of epubs are technically incorrect/corrupted and can not be read by many other programs.
2. use the first "..." button to select the ePub (with DRM) that needs to be fixed
3. use the second "..." button to select where you want the fixed ePub (still with DRM!) to be placed.
4. Hit the start button.
Once the program has successfully completed, you can now feed the fixed ePubs into other programs such as DRM removal programs like ignobleepub.pyw and ineptepub.pyw.
