class - Error LNK 2005 & LNK1169 C++ Visual Studio DLL -

i'm trying create dll plugin obs, when try compile simple script gives me following errors -

error   1   error lnk2005: _dllmain@12 defined in dllmain.obj   c:\users\user\documents\visual studio 2013\projects\name\nameenhanced\nameenhanced.obj  nameenhanced 

and

error   2   error lnk1169: 1 or more multiply defined symbols found   c:\users\user\documents\visual studio 2013\projects\name\debug\nameenhanced.dll 1   1   nameenhanced 

i've created simple script, has 2 files namely -

handle.h nameenhanced.cpp 

these files -

handle.h

#include <windows.h> #include <string> using namespace std;  namespace msgebox {     class mymessage     {     public:         static void createmessage(hwnd windowsowner, lpcwstr themessage, lpcwstr thetitle, uint theicon){             messagebox(windowsowner, themessage, thetitle, theicon);         }     }; } 

and

nameenhanced.cpp

 // nameenhanced.cpp : defines exported functions dll application.     //  #include "stdafx.h" #include <windows.h> #include "handle.h"  bool winapi dllmain(hinstance hinstdll, dword fdwreason, lpvoid lpvreserved) {     msgebox::mymessage::createmessage(null, (lpcwstr)"hello", (lpcwstr)"i see you.", mb_iconwarning | mb_canceltrycontinue);     switch (fdwreason)     {     case dll_process_attach:         // attach process         // return false fail dll load         break;      case dll_process_detach:         // detach process         break;      case dll_thread_attach:         // attach thread         break;      case dll_thread_detach:         // detach thread         break;     }     return true; // successful } 

i've tried delete dllmain.obj file didn't work

i've used https://msdn.microsoft.com/en-us/library/windows/desktop/ms645505(v=vs.85).aspx base code

i believe visual studio provides dllmain.cpp source file dll project template , say:

i've tried delete dllmain.obj file didn't work

however won't stop being recreated every build. need clean project , delete dllmain.cpp project.