https://www.epo.org/en/service-support/faq/myepo-services/online-filing-software/technical-requirements-and-2
Where do I find what in the directory structure (version 5 of the Online Filing software)?
All procedures have their own directories.
Each plug-in has additional sub-directories:
\bin - holds the *.exe file and any *.bin files, to start the GUI faster
\data - holds the temporary directories per action
\config - holds all the plug-in definitions and configurations
The \db directory contains the database files.
The \fm directory contains the file-manager files.
The DTD files are in \fop\config\dtd or a \dtd sub-directory under the plug-in directory.