Add files, start, look in output folder. The files are in "azw" format, the same exact same as the input file. All that has happened is the file has been copied from the source folder to the output.
Yes, the program "AzwSoft Ebook Drm Removal" doesn't seem to be working as expected. It appears that it is only copying the files from the source folder to the output folder without converting them to a different format.