Hi I have a sample code just to check if I can link to boost regex The code is : #include bool testregex( const char* StringToMatch ) { return( boost::regex_match( StringToMatch, boost::regex("[A-Z]+") )); } int main (int argc, char *argv[]) { bool trial = testregex( "hello how r u ?"); return 1; } I am in dll mode both in debug and release versions. The release version compiles, links and runs successfully The debug build, however throws two linker errors: I error LNK2019: unresolved external symbol "public: bool __thiscall boost::re_detail::perl_matcher >,struct boost::regex_traits

::match(void)" (?match@?$perl_matcher@PBDV?$allocator@U?$sub_match@PBD@boost@@@stlpd_st d@@U?$regex_traits@DV?$w32_regex_traits@D@boost@@@boost@@@re_detail@boos t@@QAE_NXZ) referenced in function "bool __cdecl boost::regex_match ,char,struct boost::regex_traits >(char const *,char const *,class boost::match_results > > &,class boost::basic_regex > const &,enum boost::regex_constants::_match_flags)" (??$regex_match@PBDV?$allocator@U?$sub_match@PBD@boost@@@stlpd_std@@DU?$ regex_traits@DV?$w32_regex_traits@D@boost@@@boost@@@boost@@YA_NPBD0AAV?$ match_results@PBDV?$allocator@U?$sub_match@PBD@boost@@@stlpd_std@@@0@ABV ?$basic_regex@DU?$regex_traits@DV?$w32_regex_traits@D@boost@@@boost@@@0@ W4_match_flags@regex_constants@0@@Z)

1>Main.obj : error LNK2019: unresolved external symbol "public: __thiscall boost::re_detail::perl_matcher >,struct boost::regex_traits

::perl_matcher >,struct boost::regex_traits >(char const *,char const *,class boost::match_results > > &,class boost::basic_regex > const &,enum boost::regex_constants::_match_flags,char const *)" (??0?$perl_matcher@PBDV?$allocator@U?$sub_match@PBD@boost@@@stlpd_std@@U ?$regex_traits@DV?$w32_regex_traits@D@boost@@@boost@@@re_detail@boost@@Q AE@PBD0AAV?$match_results@PBDV?$allocator@U?$sub_match@PBD@boost@@@stlpd _std@@@2@ABV?$basic_regex@DU?$regex_traits@DV?$w32_regex_traits@D@boost@ @@boost@@@2@W4_match_flags@regex_constants@2@0@Z) referenced in function "bool __cdecl boost::regex_match >,char,struct boost::regex_traits >(char const *,char const *,class boost::match_results > > &,class boost::basic_regex > const &,enum boost::regex_constants::_match_flags)" (??$regex_match@PBDV?$allocator@U?$sub_match@PBD@boost@@@stlpd_std@@DU?$ regex_traits@DV?$w32_regex_traits@D@boost@@@boost@@@boost@@YA_NPBD0AAV?$ match_results@PBDV?$allocator@U?$sub_match@PBD@boost@@@stlpd_std@@@0@ABV ?$basic_regex@DU?$regex_traits@DV?$w32_regex_traits@D@boost@@@boost@@@0@ W4_match_flags@regex_constants@0@@Z)

Any help is appreciated Manish Mangal Software Engineer atlas(r) search Partner for Results 206-816-8349 // phone Manish.Mangal@AtlasSolutions.com mailto:t-Matt.Koch@AtlasSolutions.com // email www.AtlasSolutions.com // web