Hi, I built a 64bit release version of Boost.Test with intel10.1 64bit compiler. bjam -with-test -toolset=intel stage release I moved the 64bit libs to c:\program files\boost\lib which I set in LIB env var, and set in Tools/Options/VC++directories/x64/Libraries in VS. #including boost test headers works correcty. Compilation works but linking (xilink) fails because of undefined symbols which are in libboost_unit_test_framework-iw-mt-s.lib I compile my project with /MT. Adding verbose to the linker, the list of libraries being searched doesn't include any boost lib. 0. Autolinking is not working? (I'm sure it worked once with date_time where I didn't specify the lib at all and it looked for it by itself) 1. If I explicitly add libboost_unit_test_framework-iw-mt-s.lib in Project Properties/Linker/Input/Additional Dependencies, linking fails as it doesn't find the .lib, even though the LIB env var + VS tools/options are set to include c:\program files\boost\lib 2. If I add c:\program files\boost\lib explicitly to Project Properties/Linker/General/Additional Library Directories, then all works. I'd prefer not to include in the project properties the dependencies on boost, but have it as a system-wide setting (LIB or VS/Tools/Options) 3. there is a warning that the compiler version is unknown, run the configure script. Should I look in Boost.Build doc? Rds,