Hi, I'm in the process of trying to get boost::any serializable, and it's quite tricky, especially considered my very limited experience with boost::serialize. I googled around and found an old discussion on this very list, and while interesting no resolution seemed to be found which satisfied all the criteria for being commited boost. However, since I'm not as picky with data portability, the solution hinted at in: http://lists.boost.org/boost-users/2005/09/14266.php seems very interesting. The only problem is that I can't see how it would be implemented to solve this problem. It needs to be within the definition of the class to be able for the typename to be in scoop, but since the macro seems to expand to a definition to be placed in the boost namespace I can't seem to get it to play nice. Any solution which lets me automagicaly serialize boost::any which contains serializable types, even if intrusive, would be extremely welcomed.