I compiled lua 5.0.2 into a .lib file... Now I want to use this lib in a dll that I''m creating... But I get thoses errors when I link the project... LIBCD.lib(crt0dat.obj) : error LNK2005: __cinit already defined in LIBCMTD.lib(crt0dat.obj) LIBCD.lib(crt0dat.obj) : error LNK2005: _exit already defined in LIBCMTD.lib(crt0dat.obj) LIBCD.lib(crt0dat.obj) : error LNK2005: __exit already defined in LIBCMTD.lib(crt0dat.obj) LIBCD.lib(crt0dat.obj) : error LNK2005: __cexit already defined in LIBCMTD.lib(crt0dat.obj) LIBCD.lib(crt0dat.obj) : error LNK2005: __c_exit already defined in LIBCMTD.lib(crt0dat.obj) LIBCD.lib(crt0dat.obj) : error LNK2005: __C_Exit_Done already defined in LIBCMTD.lib(crt0dat.obj) LIBCD.lib(crt0dat.obj) : error LNK2005: __C_Termination_Done already defined in LIBCMTD.lib(crt0dat.obj) LIBCD.lib(crt0dat.obj) : error LNK2005: __exitflag already defined in LIBCMTD.lib(crt0dat.obj) LIBCD.lib(crt0dat.obj) : error LNK2005: __wpgmptr already defined in LIBCMTD.lib(crt0dat.obj) LIBCD.lib(crt0dat.obj) : error LNK2005: __pgmptr already defined in LIBCMTD.lib(crt0dat.obj) LIBCD.lib(crt0dat.obj) : error LNK2005: ___winitenv already defined in LIBCMTD.lib(crt0dat.obj) LIBCD.lib(crt0dat.obj) : error LNK2005: __wenviron already defined in LIBCMTD.lib(crt0dat.obj) LIBCD.lib(crt0dat.obj) : error LNK2005: ___initenv already defined in LIBCMTD.lib(crt0dat.obj) LIBCD.lib(crt0dat.obj) : error LNK2005: __environ already def...........

Most likely you compiled the library as a non-threaded DLL and your application is threaded, or visa versa.