Currently, there are a small collection of bugs in the trunk version of Boost.Serialization that prevent the libraries from compiling as a Windows DLL. Most of these problems relate to missing dllimport/dllexport directives or, in a couple places, to directives that shouldn't be there. Attached are patches to several files to correct these issues. Thanks, -Dave Index: codecvt_null.cpp =================================================================== --- codecvt_null.cpp (revision 39562) +++ codecvt_null.cpp (working copy) @@ -7,6 +7,7 @@ // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) +#define BOOST_ARCHIVE_SOURCE #include <boost/archive/codecvt_null.hpp> // codecvt implementation for passing wchar_t objects to char output Index: codecvt_null.hpp =================================================================== --- codecvt_null.hpp (revision 39562) +++ codecvt_null.hpp (working copy) @@ -20,6 +20,7 @@ #include <cstddef> #include <boost/config.hpp> +#include <boost/archive/detail/auto_link_archive.hpp> namespace std{ #if defined(__LIBCOMO__) @@ -58,7 +59,7 @@ template<> class codecvt_null<wchar_t> : public std::codecvt<wchar_t, char, std::mbstate_t> { - virtual std::codecvt_base::result + virtual BOOST_ARCHIVE_DECL(std::codecvt_base::result) do_out( std::mbstate_t & state, const wchar_t * first1, @@ -68,7 +69,7 @@ char * last2, char * & next2 ) const; - virtual std::codecvt_base::result + virtual BOOST_ARCHIVE_DECL(std::codecvt_base::result) do_in( std::mbstate_t & state, const char * first1, Index: interface_iarchive.hpp =================================================================== --- interface_iarchive.hpp (revision 39562) +++ interface_iarchive.hpp (working copy) @@ -32,7 +32,7 @@ namespace archive { namespace detail { -class BOOST_ARCHIVE_DECL(BOOST_PP_EMPTY()) basic_pointer_iserializer; +class BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY()) basic_pointer_iserializer; template<class Archive> class interface_iarchive @@ -51,9 +51,9 @@ } template<class T> - const BOOST_ARCHIVE_DECL(BOOST_PP_EMPTY()) basic_pointer_iserializer * + const basic_pointer_iserializer * register_type(T * = NULL){ - const BOOST_ARCHIVE_DECL(BOOST_PP_EMPTY()) basic_pointer_iserializer & bpis = + const basic_pointer_iserializer & bpis = pointer_iserializer<Archive, T>::get_instance(); this->This()->register_basic_serializer(bpis.get_basic_serializer()); return & bpis; Index: interface_oarchive.hpp =================================================================== --- interface_oarchive.hpp (revision 39562) +++ interface_oarchive.hpp (working copy) @@ -32,7 +32,7 @@ namespace archive { namespace detail { -class BOOST_ARCHIVE_DECL(BOOST_PP_EMPTY()) basic_pointer_oserializer; +class BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY()) basic_pointer_oserializer; template<class Archive> class interface_oarchive @@ -51,9 +51,9 @@ } template<class T> - const BOOST_ARCHIVE_DECL(BOOST_PP_EMPTY()) basic_pointer_oserializer * + const basic_pointer_oserializer * register_type(const T * = NULL){ - const BOOST_ARCHIVE_DECL(BOOST_PP_EMPTY()) basic_pointer_oserializer & bpos = + const basic_pointer_oserializer & bpos = pointer_oserializer<Archive, T>::get_instance(); this->This()->register_basic_serializer(bpos.get_basic_serializer()); return & bpos; Index: basic_oarchive.hpp =================================================================== --- basic_oarchive.hpp (revision 39562) +++ basic_oarchive.hpp (working copy) @@ -71,16 +71,15 @@ public: // note: NOT part of the public interface void register_basic_serializer( - const BOOST_ARCHIVE_DECL(BOOST_PP_EMPTY()) basic_oserializer & bos + const basic_oserializer & bos ); void save_object( const void *x, - const BOOST_ARCHIVE_DECL(BOOST_PP_EMPTY()) basic_oserializer & bos + const basic_oserializer & bos ); void save_pointer( const void * t, - const BOOST_ARCHIVE_DECL(BOOST_PP_EMPTY()) - basic_pointer_oserializer * bpos_ptr + const basic_pointer_oserializer * bpos_ptr ); void save_null_pointer(){ vsave(NULL_POINTER_TAG);