[Boost-users] [-s- lib versions][vc80] new user Q: what's the difference between lib*vc80-mt-1_33_1.lib and lib*vc80-mt-s-1_33_1.lib

Hi I'm a new boost user. I downloaded the pre-built Visual Studio 2005/vc80 version of boost from http://www.boost-consulting.com/products/free and read the instructions at http://www.boost.org/more/getting_started.html , specifically the section on library runtimes. I have a question; In the context of vc80, and for components which have libraries, what's the difference between -s- and non-s static libs, e.g. for 'thread' -rw-r--r-- 1 John None 516994 Mar 25 2006 libboost_thread-vc80-mt-1_33_1.lib -rw-r--r-- 1 John None 845330 Mar 25 2006 libboost_thread-vc80-mt-s-1_33_1.lib thanks in advance John McMahon