I download the precompiled static boost librarys from boost-consulting website,I found there is more than one "lib" files for a boost library,for example "regex" library,there exist below ".lib" files:

  - libboost_regex-vc80-mt-1_34_1.lib;

  - libboost_regex-vc80-mt-gd-1_34_1.lib;

  - libboost_regex-vc80-mt-s-1_34_1.lib;

  - libboost_regex-vc80-mt-sgd-1_34_1.lib;

  - libboost_regex-vc80-s-1_34_1.lib;

  - libboost_regex-vc80-sgd-1_34_1.lib;

so what is the function of the files?I most use VC8 and MFC to write my program,so which ".lib" file my program linked?If I want my program to link with a boost dll library,how can I do?