// NOTE : This solution does not work with Windows 2000 (nee NT5).

void CMyDlg::ActualSetForegroundWindow (HWND hWnd)
{
   DWORD dwTimeoutMS;

   // Get the current lock timeout.
   SystemParametersInfo (0x2000, 0, &dwTimeoutMS, 0);

   // Set the lock timeout to zero
   SystemParametersInfo (0x2001, 0, 0, 0);

   // Perform the SetForegroundWindow
   ::SetForegroundWindow (hWnd);

   // Set the timeout back
   SystemParametersInfo (0x2001, 0, (LPVOID)dwTimeoutMS, 0);
}

// If you have the latest header files, you'll see the following 
// definitions:

#define SPI_GETFOREGROUNDLOCKTIMEOUT 0x2000
#define SPI_SETFOREGROUNDLOCKTIMEOUT 0x2001

// I just use the literal values here to ensure it compiles 
// for everybody.



BOOL  W2K_SetForegroundWindow (HWND hWndToForce)
{
   HWND   hCurrWnd;
   int    iMyTID;
   int    iCurrTID;
   BOOL   bRetVal;

   hCurrWnd = GetForegroundWindow ();
   iMyTID   = GetCurrentThreadId  ();
   iCurrTID = GetWindowThreadProcessId (hCurrWnd,0);

   // Connect to the current process.
   AttachThreadInput (iMyTID, iCurrTID, TRUE);

   // Now we look like the foreground process, we can set the 
   // foreground window.
   bRetVal = SetForegroundWindow (hWndToForce);

   if (!bRetVal)
   {
      char   szBuffer [60];
      wsprintf (szBuffer, "Error %u from SetForegroundWindow\n", GetLastError());
      OutputDebugString (szBuffer);
   }

   // Now detach.
   AttachThreadInput (iMyTID, iCurrTID, FALSE);
   return bRetVal;
}