Hi; This is my first attempt at using Boost. Thought I'd start with the unit test lib. I tried to make unit_test_framework1.cpp, which compiled but failed to link, producing several errors like the one below: C:/Boost/lib/libboost_unit_test_framework-mgw-s-1_32.lib(test_tools.obj)(.rdata$_ZTISt9exception+0x0):test_tools.cpp: first defined here /mingw/lib/libstdc++.a(vterminate.o)(.text$_ZTSSt9exception+0x0): multiple definition of `typeinfo name for std::exception' I compiled the Boost library using bjam with following options: bjam "-sMINGW_ROOT_DIRECTORY=C:\Dev-Cpp\bin" "-sTOOLS=mingw" "-sBUILD=release <runtime-link>static <threading>single" install Result: ...failed updating 10 targets... ...skipped 3 targets... ...updated 3164 targets... My cmd. to make unit_test_framework1.cpp is: g++ -I"C:\Boost\include\boost-1_32" -L"C:\Boost\lib" C:\Boost\lib\libboost_unit_test_framework-mgw-s-1_32.lib -o boost_test.exe boost_test.o Thank You for Your patience and help Jacek <http://www.boost.org/libs/test/example/unit_test_example1.cpp>