Dear All, I am using Boost 1.35.0 library and STLport 5.1.5 with Microsoft Visual C++ 7.1 (SP1). I can build a lot of library but not 'libboost_serialization-vc71-mt-p-1_35.lib' library. I have done the following job: 1) Configure STLport 1.1: Modify "USER_CONFIG.H", enable macro "#DEFINE _STLP_DEBUG 1" 1.2: Modify "USER_CONFIG.H", enable macro "#DEFINE _STLP_USE_BOOST_SUPPORT 1"1.3: Modify "HOST.H", enable macro "#DEFINE _STLP_USE_DYNAMIC_LIB" 2) Compile STLport 2.1: Y:\LIBRARY\STLPORT-5.1.5\BUILD\LIB>/configure -c msvc71 --rtl-dynamic --use-boost Y:\Library\boost_1_35_0/ 2.2: Y:\LIBRARY\STLPORT-5.1.5\BUILD\LIB>/nmake /fmsvc.mak /install/ 3) Build JAM tools 3.1: Y:\LIBRARY\BOOST_1_35_0\TOOLS\JAM\SRC>/build vc7/ 3.2: Copy "BJAM.EXE" into Y:\LIBRARY\BOOST_1_35_0 directory. 4) Modify Boost 4.1: Modify "USER-CONFIG.JAM", enable macro "USING MSVC ;" 4.2: Modify "USER-CONFIG.JAM", enable macro "USING STLPORT : : Y:/LIBRARY/BOOST_1_35_0/STLPORT-5.1.5/STLPORT Y:/LIBRARY/BOOST_1_35_0/STLPORT-5.1.5/LIB ;" 4.3: Copy "USER-CONFIG.JAM" into "Y:\LIBRARY\BOOST_1_35_0" 5) Build Boost 5.1: Y:\LIBRARY\BOOST_1_35_0>/bjam -sTOOLS=vc-7_1-stlport -sSTLPORT_PATH=..\STLport-5.1.5\stlport --toolset=msvc -sstdlib=stlport --build-type=complete -a install/ 6) Finish. It create new directory, which locate in: -- C:\Boost\include\ -- C:\Boost\include\boost-1_35\boost -- C:\Boost\lib Finally, I get many library in C:\Boost\lib such as "libboost_serialization-vc71-mt.lib", but I don't have any "libboost_serialization-vc71-mt-p-1_35.lib". How can I get that ...p... library? Thank you very much. Kevin Tang.