Hi there, I am a beginner using boost. I am installing boost 1.40 on windows XP with sp3 and Visual Studio Standard 2008. I followed the "Getting Started on Windows" section 5.2 "Or, Simplified Build From Source. to build my binaries". i.e. bootstrap .\bjam I then tried to run the example in section 6:Link Your Program to a Boost Library. I got expected results when link from the IDE, however, I can't link under command prompt, here's the output I got when compiling: ****************************************************************************** C:\Documents and Settings\Administrator\My Documents\Visual Studio 2008\Projects\boostBinaryLibExamp>cl /EHsc /I "c:\Program Files\boost\boost_1_40_0" boostBinaryLibExamp\boostBinaryLibExamp.cpp /link "c:\Program Files\boost\boost_1_40_0\stage\lib\libboost_regex-vc90-mt-1_40.lib" Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 15.00.21022.08 for 80x86 Copyright (C) Microsoft Corporation. All rights reserved. boostBinaryLibExamp.cpp Microsoft (R) Incremental Linker Version 9.00.21022.08 Copyright (C) Microsoft Corporation. All rights reserved. /out:boostBinaryLibExamp.exe "c:\Program Files\boost\boost_1_40_0\stage\lib\libboost_regex-vc90-mt-1_40.lib" boostBinaryLibExamp.obj LINK : fatal error LNK1104: cannot open file 'libboost_regex-vc90-mt-s-1_40.lib' ****************************************************************************** I searched in the lib directory, there's no such file there. But why I can link from IDE but not in command prompt? btw, the boostPro installer only has version 1.39, right? I want to use 1.40. Thanks, Neil