add FAQ about OLE support
@@ -43,8 +43,8 @@ Imported ezdxf package has no content. (readfile, new)
.. _faq003:
-How to add/edit ACIS based entities like 3DSOLID, REGION or SURFACE
--------------------------------------------------------------------
+How to add/edit ACIS based entities like 3DSOLID, REGION or SURFACE?
+--------------------------------------------------------------------
The BODY, 3DSOLID, SURFACE, REGION and so on, are stored as ACIS data embedded
in the DXF file. The ACIS data is stored as SAT (text) format in the entity
@@ -61,3 +61,32 @@ The ACIS support provided by `ezdxf` is only useful for users have to have
access to the ACIS SDK from `Spatial Inc.`_.
.. _Spatial Inc.: https://www.spatial.com/products/3d-acis-modeling
+
+.. _faq004:
+
+Are OLE/OLE2 entities supported?
+--------------------------------
+
+TLDR; NO!
+
+The Wikipedia definition of `OLE`_: Object Linking & Embedding (OLE) is a proprietary
+technology developed by Microsoft that allows embedding and linking to documents
+and other objects. For developers, it brought OLE Control Extension (OCX), a
+way to develop and use custom user interface elements. On a technical level, an
+OLE object is any object that implements the ``IOleObject`` interface, possibly
+along with a wide range of other interfaces, depending on the object's needs.
+
+Therefore `ezdxf` does not support this entities in any way, this only
+work on Windows and with the required editing application installed.
+The binary data stored in the OLE objects cannot be used without the
+editing application.
+
+In my opinion, using OLE objects in a CAD drawing is a very bad design decision
+that can and will cause problems opening these files in the future, even in
+AutoCAD on Windows when the required editing application is no longer available
+or the underlying technology is no longer supported.
+
+All of this is unacceptable for a data storage format that should be accessed
+for many years or decades (e.g. construction drawings for buildings or bridges).
+
+.. _OLE: https://en.wikipedia.org/wiki/Object_Linking_and_Embedding
\ No newline at end of file
