Mabuhay!

Hello peeps! I got a quite simple question to ask you. I want to check if a computer is connected to a network, it's like pinging a computer. I know that this is simple and I am currently using a third party custom control for this. The thing is, I'm using that control just to check if I'm connected to a certain computer. For API gurus, how can i do this without using custom controls. Also, the control only makes my installation program as well as my exe bigger.

Thanks in advance and more power to all of us.