Hello, With the precompiled boost libs from boost-consulting I get linker errors error LNK2019: unresolved external symbol "private: void __cdecl boost::detail::tss::init(class boost::function1<void,void *,class std::allocator<class boost::function_base> > *)" (?init@tss@detail@boost@@AEAAXPEAV?$function1@XPEAXV?$allocator@Vfunction_base@boost@@@std@@@3@@Z) referenced in function "public: __cdecl boost::detail::tss::tss(class boost::function1<void,void *,class std::allocator<class boost::function_base> > *)" (??0tss@detail@boost@@QEAA@PEAV?$function1@XPEAXV?$allocator@Vfunction_base@boost@@@std@@@2@@Z) I started a shell such that Microsoft Visual Studio 8/VC/BIN/amd64/CL.EXE is the compiler on the $PATH I then run bjam --toolset=msvc" but the problem persists. Is there another toolset I have to choose? thanks in advance, andreas