Revisiting Boost after a long absence. Any thoughts on the following problem(s)? W7x64 with VS2008,2010,2012 and 2013 installed. VS2012 preferred for regular use. Built with boostrap and b2 b2 -link=static -runtime-link=static -toolset=msvc-11.0. I compile a debug test app with /MTd and attempt to link with libboost_system-vc110-mt-gd-1_55.lib which is the only library close to matching the ABI tag specified here : http://www.boost.org/doc/libs/1_55_0/more/getting_started/windows.html#id46 Ensuing link errors are: 1>libboost_system-vc110-mt-gd-1_55.lib(error_code.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '2' doesn't match value '0' in tcpproxy_server.obj 1>libboost_system-vc110-mt-gd-1_55.lib(error_code.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MDd_DynamicDebug' doesn't match value 'MT_StaticRelease' in tcpproxy_server.obj 1>LINK : warning LNK4098: defaultlib 'MSVCRTD' conflicts with use of other libs; use /NODEFAULTLIB:library Many thanks.