When I build boost 1.47.0 beta 1 with the following command bjam --stagedir=vc10-x86-stage --layout=tagged toolset=msvc-10.0 variant=debug link=shared threading=multi runtime-link=shared address-model=32 --with-exception I get the following output. [snip] msvc.link.dll bin.v2\libs\exception\build\msvc-10.0\debug\address-model-32\threading-multi\boost_exception-mt-gd.dll msvc.manifest.dll bin.v2\libs\exception\build\msvc-10.0\debug\address-model-32\threading-multi\boost_exception-mt-gd.dll common.copy vc10-x86-stage\lib\boost_exception-mt-gd.dll bin.v2\libs\exception\build\msvc-10.0\debug\address-model-32\threading-multi\boost_exception-mt-gd.dll 1 file(s) copied. common.copy vc10-x86-stage\lib\boost_exception-mt-gd.lib The system cannot find the file specified. copy /b "bin.v2\libs\exception\build\msvc-10.0\debug\address-model-32\threading-multi\boost_exception-mt-gd.lib" + this-file-does-not-exist-A698EE7806899E69 "vc10-x86-stage\lib\boost_exception-mt-gd.lib" ...failed common.copy vc10-x86-stage\lib\boost_exception-mt-gd.lib... ...failed updating 1 target... ...updated 15 targets... It looks like boost_exception-mt-gd.dll doesn't export any symbols. -- Orhun Birsoy