Better late than never :-) https://github.com/updraft/updraft/blob/998156bad368bb2465b36d533ab8cbba85cc58fd/Docs/TechnicalSpecification.odt?raw=true https://github.com/updraft/updraft/blob/998156bad368bb2465b36d533ab8cbba85cc58fd/Docs/PluginInterface.h Kuba