Ping for WinCE under VC2005

独立的Ping网络连接状态源码和MFC界面，检查网络是否中断，vc2005开发。-Ping the network connection status independent source and MFC interfaces, check the network is interrupted, vc2005 development.

VC2005实现可运行ping，可设置ping次数。-VC2005 ping source。