1.You must define LEVELDB_DLL in your project if you use leveldb as a dll. 2.If your windows version is lower than 6.0(windows vista),you should undefine the USE_VISTA_API micro in port_win32.h. 3.Leveldbwin may be not stable now ,so it is not suggested to use leveldbwin in your project. 4.Modification in leveldb code : 1) including path in some headers. 2) delete some useless platform files. ##########################my_readme########################### +++++++++++++++++++++++ ##############################################++++++++++++++++++++