[Boost-users] [serialization] class template with virtual base

Hi, I've been searching the archives but am not finding an answer... Is there any way to serialise D<> via a pointer to its base B when the types used to parameterise D<> are not known in advance? i.e. How do I register D<> with the serialisation library? For Example... struct B{ virtual void fn() =0; }; template<typename T> struct D : B{ virtual void fn(){}; }; B* b = new D<char>(); .... anArchive & b; Thanks, Richard.