Installing Boost is much simpler than before. First I heard that Boost is an algorithm for Adaboost. Later, I knew it was a C Libray, I have been just awkward. No use. So try it. STEP1. Download Boost Library Step2 from www.boost.org Run Build.bat in Tools / Build / Jam_src Directory to generate Jamstep3 Setting Environment Variable Path = C: / Program Files / Microsoft Visual Studio .NET 2003 / VC7 / BOOST / TOOLS /BUILD/JAM_SRC/bin.ntx86;%Path% Path = C: / Program Files / Microsoft Visual Studio .NET 2003 / VC7 / BOOST; C: / Program Files / Microsoft Visual Studio .NET 2003 / VC7 / BOOST / TOOLS / Build / jam_src / bin.ntx86;% path% set msvc_root = "C: / Program Files / Microsoft Visual Studio .NET 2003 / VC7" SET VC7_ROOT = "C: / Program Files / Microsoft Visual Studio .NET 2003 / VC7" SET Visualc = "C: / Program Files / Microsoft Visual Studio .NET 2003 / VC7" SET JAM_TOOLSET = Visualc STEP 4 Compile Boost library to switch to the directory containing boost-build.jam running JAM. You can try Boost how you write a simple program.