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procedure TForm1.Button1Click(Sender: TObject);
var
  Postdata: TStringList;
  ReturnMemoryStream: TMemoryStream;
  Correct: String;
begin
  Postdata:=TStringList.Create;
  ReturnMemoryStream:=TMemoryStream.Create;
  Postdata.Add('Passwort=Test');
//  try
    MySQLIdHTTP.Post('killprocess.ki.funpic.de/passwort.html', Postdata, ReturnMemoryStream);
    ReturnMemoryStream.Position:=0;
    if ReturnMemoryStream.Read(Correct, 1)=1 then
    begin
      ShowMessage('Correct');
    end
    else
    begin
      ShowMessage('Not Correct');
    end;
{  except
    ShowMessage('MySQL-Fehler');
  end;}
  FreeAndNil(Postdata);
  FreeAndNil(ReturnMemoryStream)
end;