#include <Windows.h>
#define DLL_EXPORT extern "C" __declspec(dllexport)
void DllInit(HMODULE);
void DllPreInit(HMODULE);
void DllUnload(HMODULE);

BOOL APIENTRY DllMain(HMODULE hModule,
                      DWORD ul_reason_for_call,
                      LPVOID lpReserved)
{
  HANDLE hThread = INVALID_HANDLE_VALUE;
  switch (ul_reason_for_call)
  {
  case DLL_PROCESS_ATTACH:
    DisableThreadLibraryCalls(hModule);
    DllPreInit(hModule);
    hThread = CreateThread(NULL, NULL, (LPTHREAD_START_ROUTINE)DllInit, hModule, 0, 0);
    if (hThread) {
      CloseHandle(hThread);
    }
    break;
  case DLL_PROCESS_DETACH:
    DllUnload(hModule);
    break;
  case DLL_THREAD_ATTACH:
  case DLL_THREAD_DETACH:
    break;
  }
  return TRUE;
}