Catching the pointers of worker threads

Hello Friends,


To kill the threads I am using following code idea in my application. After killing the threads also, I am seeing some of the threads are still running in my application

CObArray threadArray;

UINT ExecThread(LPVOID lp)
{
     int i=0,sum=0;
     Sleep(10000);
     for(i=0;i<1000;i++)
          sum+=i;

     CString str_sum;
     str_sum.Format ("%d",sum);
     AfxMessageBox("The sum is "+str_sum);
     return 0;    

}

void CTestKillThreadDlg::OnButton1()
{
     // TODO: Add your control notification handler code here

     
     array.Add(AfxBeginThread(ExecThread,NULL,THREAD_PRIORITY_NORMAL+1));
}

void CTestKillThreadDlg::OnButton2()
{
     // TODO: Add your control notification handler code here
         try
        {
     CWinThread* thread=(CWinThread*)array.GetAt(0);
     TerminateThread (thread->m_hThread ,0);
 array.RemoveAt(0);
        }catch(...)
        {
                      array.RemoveAt(0);
                           //  I put catch block here bcause, if  a thread that i am accessing here is already executed, then
                          //  TerminateThread (thread->m_hThread ,0); is raising exception, hence treating it as executed i am
                          //  removing that thread from array

         }

}


what is the problem in my codes??

Ad also I need to catch the pointers of all worker threads that are still in memory


thanks
sudhakar