Hi, I am mainly using boost::asio and I get a link error when I try to build my project on 32-bit release VC8.0 saying (The according 32-Bit libs are correctly included): error LNK2019: Verweis auf nicht aufgelöstes externes Symbol ""class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAABVerror_category@12@XZ)" in Funktion ""class boost::system::error_category const & __cdecl boost::system::get_system_category(void)" (?get_system_category@system@boost@@YAABVerror_category@12@XZ)". error LNK2001: Nicht aufgelöstes externes Symbol ""class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAABVerror_category@12@XZ)". However, compiling my project in 64-Bit release works just fine (according 64-bi libs included) and I don´t get these errors. Anybody knows what´s going on here? :-/ I searched the boost list for previous problems but none of the topics I found helped. Thank you in advance Samir