Hi I have installed 30-days evaluation of the Intel C++ compiler. I have managed to modify sources to compile with the Intel C++ but have staked on the linking. I get error 2>ipo : error #11063: Q:\\Periscope\\Development\\lib\\Utilities\\x64\\Release\\Utilities.lib : UTILITIES::TCPIP::SOCKET_BUFF::overflow(?overflow@SOCKET_BUFF@TCPIP@UTILITIES@@QEAA_NI@Z) already defined in Q:\\Periscope\\Development\\lib\\Utilities\\x64\\Release\\Utilities.lib The text of error is confusing since it implies obvious condition which should not be an error. The name of the function is changing if i try to build other projects. However the problem is always the same the eror #11063. Any help? My Env:Windows server 2003-64bit,VS 2010 Thanks Adam Zielinski