Hi. When building Boost using VC8, on a Hebrew supporting Windows, it issues this (probably) minor warning: warning C4819: The file contains a character that cannot be represented in the current code page (1255). Save the file in Unicode format to prevent data loss for the following files (no line numbers were reported): boost_1_33_1\boost/filesystem/exception.hpp boost_1_33_1\boost/filesystem/operations.hpp boost_1_33_1\libs\filesystem\build\../src/exception.cpp boost_1_33_1\libs\filesystem\build\../src/operations_posix_windows.cpp I think the origin of the warning is the comment at the top of these files which contains the name of "Dietmar K?hl". The second character of the last name, shown here as '?', is not pure English ANSI, and it's probably the cause of the warning. (maybe that's an idea to add to the Boost inspect utility?) Compiling my own code that uses the filesystem library also issue this warning, since header files are involved. Yuval