action name = EplApiModuleAction Loads and registers an API addin.
| Parameter | Description | 
|---|---|
| register | File name of the add-in dll to be registered.If no absolute file name is specified, the file name is preceeded with system's current directory.  | 
| registerModule | Register an API Module. The Settings must be available, then the services are created.  | 
| unregister | Assembly file title of the add-in to be de-registered. The file title is the one displayed in the api module dialog. (This is the name of the assembly without path and without the ending .dll)  | 
| unregisterInternal | Assembly file title of the add-in to be de-registered. When an error makes the unload impossible,the module is only deregistered.  |