Shows quite a resemblance to the ECOM guide provided by Symbian's Developer Library documentation including a copy of the diagram.
This material should not be reproduced with acknowledgement of the original, so I've added a link to it.
--Stichbury 04:55, 10 August 2007 (UTC) I think it's OK to leave in this case. I normally remove if it's a direct copy, but this text has been modified in places and those changes enhance the explanation of the original. So a link is fine AFAICT. But thanks for checking!
From Symbian OS v7.0 onwards, the ECom plug-in architecture can be used as an alternative to polymorphic DLLs. Before using ECom plugin, it is necessary to understand the concept of ECom architecture. The article is very useful to understand ECom architecture. ECom plugin is considered as alternative to Polymorphic DLL. Also writing an ECOM Plugin is far more simple than writing a polymorphic dll.
--kamlesh sangani 03:44, 28 September 2009 (UTC)