Hello, my goal is fast portable serialization when 95% of data is in large binary objects. 1) binary_archive is fast, but nonportable. 2) text_archive is portable, but ~50x slower. 3) portable_binary_archive looks like solution, but I'm not able to use it to serialize by pointer. Problem can be demonstrated in demo_portable_archive.cpp of boost 1.42 by changing "char c;" to "A* c;" and "c(std::rand())" to "c(0)". Errors from VS2008 linker look like error LNK2019: unresolved external symbol "public: static class boost::archive::detail::basic_serializer const * __cdecl boost::archive::detail::archive_serializer_map<class portable_binary_iarchive>::find(class boost::serialization::extended_type_info const &)" (?find@?$archive_serializer_map@Vportable_binary_iarchive@@@detail@archive@boost@@SAPBVbasic_serializer@234@ABVextended_type_info@serialization@4@@Z) referenced in function "public: static class boost::archive::detail::basic_pointer_iserializer const * __cdecl boost::archive::detail::load_pointer_type<class portable_binary_iarchive>::find(class boost::serialization::extended_type_info const &)" (?find@?$load_pointer_type@Vportable_binary_iarchive@@@detail@archive@boost@@SAPBVbasic_pointer_iserializer@234@ABVextended_type_info@serialization@4@@Z) demo_portable_archive.obj Any idea how to fix it? 4) Is it possible to override text_archive to process binary objects faster, without converting them to text? Stepan