> TObject:delete is virtual function :-(. It's mean, that I can't to use ROOT 
> container class for my object in interactive session.
 Having virtual destructor for TObject sounds perfectly reasonable. But,
 in the dictionary, ~TObject() is not marked virtual. I'm puzzled.
 Anyway, this is an implementor's problem, not user's. Let me think.
> Have you list of limitation for interactive session? I don't find this in the
> documentation.
 Yes. Download cint source package from hpsalo.cern.ch/root/Cint.html. 
 Unpack it and look at doc/man2/syntax.2.  There described the list of 
 limitations of CINT.
Masaharu Goto