Hello, I'm new in using the MultiIndex container of Boost 1.32.0. To get familiar with this library I wrote a small example. During the compilation with the Microsoft Visual C++ 7.1 compiler I encounter an internal compiler error. The error occurs, if I use the MultiIndex container with the following configuration: - Specification of tagged indices. - Specification of one composite_key template parameter. - Specification of at least three indices. Example: struct SFirst { }; struct SSecond { }; struct SBoth { }; typedef std::pair<std::wstring, std::wstring> Element_t; typedef multi_index_container<Element_t, indexed_by<ordered_non_unique<tag<SFirst>, member<Element_t, std::wstring, &Element_t::first> >, ordered_non_unique<tag<SSecond>, member<Element_t, std::wstring, &Element_t::second> >, ordered_unique<tag<SBoth>, composite_key<Element_t, member<Element_t, std::wstring, &Element_t::first>, member<Element_t, std::wstring, &Element_t::second> > > > > MultiIndex_t; //... int main(int argc, char** argv) { MultiIndex_t test; MultiIndex_t::index<SBoth>::type& both = test.get<SBoth>(); return 0; } If I compile this code I get the following internal compiler error: d:\Libraries\DLLs\Boost\Boost_1_32_0\inc\boost\tuple\detail\tuple_basic.hpp(612) : fatal error C1001: INTERNAL COMPILER ERROR (compiler file 'msc1.cpp', line 2701) Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information If I try to access the first (#0) and second (#1) index with their respective tags, everything works fine. Also, I'm able to access all three indices by their numerical value without an error. Is the declaration of the MultiIndex_t typedef wrong? Regards, Jochen.