Hi, I am new to C++ development and using boost regex library. I have downloaded 1_34_1 version. I have built regex library and it created boost_regex-vc80-mt-*1_34*.lib & dll files for me. But when I included headers and compiled my application but its giving me the following linker error. - *Error 1 fatal error LNK1104: cannot open file 'boost_regex-vc80-mt-gd-1_34_1.lib' ExpEval * * *so I defined *BOOST_REGEX_NO_LIB *and ran the application this time I got the following error - *This application has failed to start because MSVCP80.dll was not found. Reinstalling the application may fix this problem.* Is any one faced the similar problem ? Please help me if you know whats wrong here. Appreciate your help in advance. thanks Srinivas