A plug-in is a shared library (on Unix or Linux systems) or DLL file (on Windows systems) for retrieving content when an external store is in use.
You must create the plug-in. Documentum provides code for sample plug-ins in the DM_HOME/unsupported/plugins directory. The sample plug-ins are examples and are not supported by EMC Documentum.
The API interface between the shared library or DLL and the server consists of C functions for the plug-in library.
For information on creating or modifying plug-ins, refer to Creating or modifying plug-ins.