Hello, I'm trying to get regexp to work under vc6, STL 4.5.3 and boost 1.30.2 but sadly I'm running into some problems. Did anyone ever had this problem with the following methods ? error LNK2001: unresolved external symbol "public: static void __cdecl boost::w32_regex_traits<char>::transform_primary( ... error LNK2001: unresolved external symbol "public: static void __cdecl boost::w32_regex_traits<char>::transform( ... Thanks, Mrk