I'm getting the errors when building DLL versions of the following boost sub projects: prg_exec_monitor unit_test_framework The messages are: vc-Link libs\test\build\bin\boost_prg_exec_monitor.dll\msvc\release\runtime-link-sta tic\boost_prg_exec_monitor.dll libs\test\build\bin\boost_prg_exec_monitor.dll\msvc\release\runtime-link-sta tic\boost_prg_exec_monitor.lib cpp_main.obj : error LNK2001: unresolved external symbol "int __cdecl cpp_main(int,char * * const)" (?cpp_main@@YAHHQAPAD@Z) libs\test\build\bin\boost_prg_exec_monitor.dll\msvc\release\runtime-link-sta tic\boost_prg_exec_monitor.dll : fatal error LNK1120: 1 unresolved externals vc-Link libs\test\build\bin\boost_unit_test_framework.dll\msvc\release\runtime-link- static\boost_unit_test_framework.dll libs\test\build\bin\boost_unit_test_framework.dll\msvc\release\runtime-link- static\boost_unit_test_framework.lib unit_test_main.obj : error LNK2001: unresolved external symbol "class boost::unit_test_framework::test_suite * __cdecl init_unit_test_suite(int,char * * const)" (?init_unit_test_suite@@YAPAVtest_suite@unit_test_framework@boost@@HQAPAD@Z) libs\test\build\bin\boost_unit_test_framework.dll\msvc\release\runtime-link- static\boost_unit_test_framework.dll : fatal error LNK1120: 1 unresolved externals