CoInitialize(NULL);//初始化COM套件CoUninitialize();//釋放COM套件

static bool isCoInitialize = false; //是否是自己進行的初始化int WINAPI DllEntryPoint(HINSTANCE hinst, unsigned long reason, void* lpReserved){  if(reason==DLL_PROCESS_ATTACH)  {    if(ConInitialize(NULL) == S_OK) isCoInitialize = true;  }  if(reason==DLL_PROCESS_DETACH)  {    if(isCoInitialize) CoUninitialize();    //是自己初始化的才釋放，否則由其他初始化的地方自行釋放，    //防止錯誤的釋放導致別的調用者失敗  }  return 1;}