I've continue to play around with this for a few days. The problem revolves around std::wstring. I can serialize just about anything, with the exception of a std::wstring, using the library. Am I required to use the wide version of the archives to do std::wstring? If so, is there some mechanism by which a compiler error can be triggered if you try to use a std::wstring with a non wide version of an archive? As a side note, I've tried to incorporate the wide version of the library and use that, but I'm running into a different batch of link errors: error LNK2019: unresolved external symbol "public: __thiscall boost::archive::xml_wiarchive_impl<class boost::archive::xml_wiarchive>::xml_wiarchive_impl<class boost::archive::xml_wiarchive>(class std::basic_istream<unsigned short,struct std::char_traits<unsigned short> > &,unsigned int)" error LNK2019: unresolved external symbol "public: __thiscall boost::archive::xml_woarchive_impl<class boost::archive::xml_woarchive>::xml_woarchive_impl<class boost::archive::xml_woarchive>(class std::basic_ostream<unsigned short,struct std::char_traits<unsigned short> > &,unsigned int)" error LNK2019: unresolved external symbol "public: __thiscall boost::archive::basic_text_oprimitive<class std::basic_ostream<unsigned short,struct std::char_traits<unsigned short> > >::~basic_text_oprimitive<class std::basic_ostream<unsigned short,struct std::char_traits<unsigned short> > >(void)" (??1?$basic_text_oprimitive@V?$basic_ostream@GU?$char_traits@G@std@@@std@@@archive@boost@@QAE@XZ) referenced in function "public: virtual __thiscall boost::archive::xml_woarchive_impl<class boost::archive::xml_woarchive>::~xml_woarchive_impl<class boost::archive::xml_woarchive>(void)" Any thoughts? I actually still get the same errors caused by the use of std::wstring as well. Jared