Name Confusion
Automation objects do not necessarily use Microsoft OLE, which stands for Object Linking and Embedding — currently only a subset of COM — although some of Automation objects (which are a special type of COM objects) can be used in OLE and/or ActiveX environments. The confusion has its roots in Microsoft's earlier (rather vague) definition of OLE, which was previously more or less a synonym of COM — to the point that the acronym "OLE" frequently appears in legacy COM code, like parts of the MFC library.
Read more about this topic: OLE Automation
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“The mystic purchases a moment of exhilaration with a lifetime of confusion; and the confusion is infectious and destructive. It is confusing and destructive to try and explain anything in terms of anything else, poetry in terms of psychology.”
—Basil Bunting (1900–1985)