屏蔽键盘截图键，也可屏蔽其它任意按键，

这个是针对win7做的，win7还自带了个截图软件，在超级用户下不能删除和重命名，

所以加了一段检测进程的，当运行截图软件强制退出。-Screenshot key keyboard shield, the shield can also be any other keys, This is done for win7, win7 has since brought a screenshot of the software, the super-users can not delete, and rename, So add some detection process, when running screenshot software Force Quit.