When I built boost 1.33.1 with GCC 3.4.5 on WinXP I got 274 files in the \boost\lib directory consisting of both DLLs and .lib files. When I built boost 1.34 (following the new getting started directions) I only got 154 files in \boost\lib none were DLL or LIB, they were all .a files. Interestingly when the 1.34.0 build starts I get "Unable to construct ./install-unversioned" messages that I don't get in the 1.33.1 build: ...found 1 target... C:\src\c++\boost_1_34_0>bjam --toolset=gcc --prefix=C:\Boost1.34.0 install Building Boost.Regex with the optional Unicode/ICU support disabled. Please refer to the Boost.Regex documentation for more information (don't panic: this is a strictly optional feature). warning: Unable to construct ./install-unversioned warning: Unable to construct ./install-unversioned warning: Unable to construct ./install-unversioned Thanks, Ken