>IOW: The Object holds properties that are not defined in the class. Very strange view on OOP.

They are defined in the class but not visible in the IDE Properties window or Properties Editor.

>
>This is even more strange then the ridiculous calls on the _Assigns.

It looks like a bug. IDE was never adjusted when _Access/_Assigns were introduced

>
>But after a closer loc to help (Sic!) one see that the help describes a lot of objects. How the classes works isn't there. Strange again is the use of the empty class - the class that can not be subclassed. Does MS mix up something?

In order for any class to be subclassed in VFP it has to have a bunch of properties and methods related to that. An Empty object was created per VFP developers requests to have very light object w/o any extra properties or methods.