Erik Moore has an artice in MSDN Magazine about VFP 7 event binding

http://msdn.microsoft.com/msdnmag/issues/01/10/VFP7/VFP7.asp

Figure 9 (and figure 6) in this article defines interface implementation class

DEFINE CLASS WordEvents AS Session OLEPUBLIC
...

The OLEPUBLIC keyword causes unnessecary registration of com server during building project. Interface implementation works without OLEPUBLIC.

I'm wondering why the OLEPUBLIC keyword is there !?

Also, why the Session is used as base class in those two figures? This
prevents interface implementation class from accessing currently opened
tables.