Ok, I got past the errors I was having last night. Seemed to have to do with the ordering of the libraries and then an incorrect constant used in the load method. Moving on, I now get the following linker errors: Linking... Creating library Debug/SerializationDemo.lib and object Debug/SerializationDemo.exp demo.obj : error LNK2019: unresolved external symbol "public: __thiscall boost::archive::basic_text_oprimitive

::~basic_text_oprimitive >(void)" (??1?$basic_text_oprimitive@V?$basic_ostream@GU?$char_traits@G@std@@@std @@@archive@boost@@QAE@XZ) referenced in function "public: __thiscall boost::archive::text_woarchive_impl<class boost::archive::text_woarchive>::~text_woarchive_impl<class boost::archive::text_woarchive>(void)" (??1?$text_woarchive_impl@Vtext_woarchive@archive@boost@@@archive@boost@ @QAE@XZ)

demo.obj : error LNK2019: unresolved external symbol "public: __thiscall boost::archive::text_wiarchive_impl<class boost::archive::text_wiarchive>::text_wiarchive_impl<class boost::archive::text_wiarchive>(class std::basic_istream &,unsigned int)" (??0?$text_wiarchive_impl@Vtext_wiarchive@archive@boost@@@archive@boost@ @QAE@AAV?$basic_istream@GU?$char_traits@G@std@@@std@@I@Z) referenced in function "public: __thiscall boost::archive::text_wiarchive::text_wiarchive(class std::basic_istream &,unsigned int)" (??0text_wiarchive@archive@boost@@QAE@AAV?$basic_istream@GU?$char_traits @G@std@@@std@@I@Z) demo.obj : error LNK2019: unresolved external symbol "public: __thiscall boost::archive::basic_text_iprimitive

::~basic_text_iprimitive >(void)" (??1?$basic_text_iprimitive@V?$basic_istream@GU?$char_traits@G@std@@@std @@@archive@boost@@QAE@XZ) referenced in function "public: __thiscall boost::archive::text_wiarchive_impl<class boost::archive::text_wiarchive>::~text_wiarchive_impl<class boost::archive::text_wiarchive>(void)" (??1?$text_wiarchive_impl@Vtext_wiarchive@archive@boost@@@archive@boost@ @QAE@XZ)

demo.obj : error LNK2019: unresolved external symbol "public: __thiscall boost::archive::basic_text_oprimitive

::basic_text_oprimitive >(class std::basic_ostream &,bool)" (??0?$basic_text_oprimitive@V?$basic_ostream@GU?$char_traits@G@std@@@std @@@archive@boost@@QAE@AAV?$basic_ostream@GU?$char_traits@G@std@@@std@@_N @Z) referenced in function "public: __thiscall boost::archive::text_woarchive_impl<class boost::archive::text_woarchive>::text_woarchive_impl<class boost::archive::text_woarchive>(class std::basic_ostream &,unsigned int)" (??0?$text_woarchive_impl@Vtext_woarchive@archive@boost@@@archive@boost@ @QAE@AAV?$basic_ostream@GU?$char_traits@G@std@@@std@@I@Z)

Debug/SerializationDemo.exe : fatal error LNK1120: 4 unresolved externals However, if I change the build type to not be unicode, then it all compiles, links, and works. I checked to see what libraries are being linked in a non- unicode build vs. a unicode: Non-Unicode: Linking to lib file: libboost_serialization-vc71-sgd-1_33_1.lib // Good Linking to lib file: libboost_serialization-vc71-sgd-1_33_1.lib // Good Unicode: Linking to lib file: libboost_wserialization-vc71-sgd-1_33_1.lib // Good Linking to lib file: libboost_serialization-vc71-sgd-1_33_1.lib // Why?? Linking to lib file: libboost_serialization-vc71-sgd-1_33_1.lib // Why?? Any ideas? Does the boost serialization possibly have unicode issues in 1.33.1? Thanks in advance, Lawrence