CreateProcess and TerminateProcess

From:

"Guido Franzke" <guidof73@yahoo.de>

Newsgroups:

microsoft.public.vc.mfc

Date:

Tue, 21 Jul 2009 18:21:03 +0200

Message-ID:

<uZGHk9hCKHA.4608@TK2MSFTNGP02.phx.gbl>

Hello NG,

I want to kill a process that I created with CreateProces . This is what I
do:

   char* szProgramm = "C:\\Windows\\System32\\mspaint.exe";

   STARTUPINFO m_si;
   PROCESS_INFORMATION m_pi;

   BOOL bRet = CreateProcess( NULL, // No module name (use command line).
        szProgramm, // Command line.
        NULL, // Process handle not inheritable.
        NULL, // Thread handle not inheritable.
        FALSE, // Set handle inheritance to FALSE.
        0, // No creation flags.
        NULL, // Use parent's environment block.
        NULL, // Use parent's starting directory.
        &m_si, // Pointer to STARTUPINFO structure.
        &m_pi ); // Pointer to PROCESS_INFORMATION structure.
   if (!bRet)
   {
      if (m_pi.hProcess) CloseHandle( m_pi.hProcess );
      if (m_pi.hThread) CloseHandle( m_pi.hThread );
   }
   // now MS Paint has started
   // ...
   // after some time I want to kill MS Paint again:
   if (m_pi.hProcess) CloseHandle( m_pi.hProcess );
   if (m_pi.hThread) CloseHandle( m_pi.hThread );
   if (m_pi.hProcess) TerminateProcess(m_pi.hProcess,0);

But the process is not terminated/killed.
How can I kill the process?

Thanks for help,
Guido