Hello all, I just download boost 1.33.1 and I am building using VC++ 7.1. I am a bit confused on the directory structure of serialization library (1) \bin\boost\libs\serialization\build\libboost_serialization.lib \bin\boost\libs\serialization\build\libboost_wserialization.lib May I know the differences among libboost_serialization.lib and libboost_wserialization.lib directory? What is the meaning of 'w'? (2) \bin\boost\libs\serialization\build\libboost_serialization.lib \bin\boost\libs\serialization\build\boost_serialization.dll First, I thought libboost_serialization.lib are mean for static library, boost_serialization.dll are mean for dynamic library. However, inside the libboost_serialization.lib directory, they are further divided into libboost_serialization.lib\vc-7_1\release\runtime-link-static\threading-multi libboost_serialization.lib\vc-7_1\release\threading-multi <---- (Does this mean this is a dynamic library since it doesn't contains runtime-link-static??? How about boost_serialization.dll) Thank you very much! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com