when we use iocp,first,we should create a port like this --- CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 0);---

But in the implementation of CreateIoCompletionPort,the beginning of  the fuction is :

 

   if ( ExistingCompletionPort == NULL && FileHandle == INVALID_HANDLE_VALUE )
   {
      SetLastError(ERROR_INVALID_PARAMETER);
      return FALSE;
   }

 

so ,all the application running well on MS Windows will not run correct in ReactOS,Because they will always get the ERROR_INVALID_PARAMETER error code when they

 call CreateIoCompletionPort like --CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 0);--

 

I think this is a problem,But I'm not sure!