Hello!! All, I ned help for BUILDING and INSTALLING the Boost Libraries through VC++ Express Edition . I tweaked it for couple of hrs unscussefully. Here is a run down of the steps I have taken Downloaded following three packs boost_1_33_1 boost-build-2.0-m10 boost-jam-3.1.12 Changed vcvars32.bat for PATH,INCLUDE and LIB settings for Platform SDK OS Environemental variables BOOST BOOST_BUILD_PATH VC80_ROOTS VC80CMNTOOLS Use of 'bjam install' or 'bjam "-sTOOLS=vc8" install ' generates following ERRORS/MESSAGE ------------------------------------------------------------------------------------------------------------------------------------------------------------------ C:/dnld/BOOST/boost_1_33_1/tools/build/v2\build-system.jam:48: in load rule os.environ unknown in module build-system. ------------------------------------------------------------------------------------------------------------------------------------------------------------------ C:\dnld\BOOST\boost-build-2.0-m10\boost-build\kernel\modules.jam:259: in import C:\dnld\BOOST\boost-build-2.0-m10\boost-build\kernel\bootstrap.jam:120: in boost-build C:\dnld\BOOST\boost-build-2.0-m10\boost-build\boost-build.jam:1: in module scope can someone of you take a while to show pointers to correct me. Thanks for all your time. Hemal Patel