Hi, I want to extend Zope to receive simple objects made by me, put them into a Berkley DB based database located at the server and process the data. Example : User scans a cd-rom locally, the created cd-rom-object is pickled, compressed using zlib and transferred to a zope-server, where a special part, the part I want to make, receives the object and creates indexes, reports etc. Later on the user can configure how the data shall be processed, indexes created etc. and search his or other peoples data thru zope, like searching yahoo. The problem is transferring objects to the server. I`ve looked at DOPY and PYRO, but Zope has more features etc. Any ideas or hints on what documents I should read in the Zope documentation, what source-files I should study to understand this etc. ???? The server must be able to process lots of concurrent users. Thomas