The full .Net Framework does have a Ping class which can be used with the Door library or a library. However the Compact Framework (device framework) doesn't support it.
Well that was a frustrating hour or so I wanted to use a receive timeout that is listed as being available for both the Compact and full Frameworks and I couldn't understand why it wouldn't work Eventually by Googling I found the most stupid comment that I have seen (so far!) from a Microsofty who worked on the socket code
"The Compact Framework supports it but the underlying OS doesn't and throws an error- I hope that makes it clear"
Try this next attempt, seems to work OK on my WM6.1 iPAQ 214.
It runs on acer n311 WM5 and hp ipaq 214 wm6 .
There is only one small problem::
1 Ping ipaddress 192.168.1.4 ping running time "20 seconds" ,( msg ping Reply from192.168.1.4 in 21 ms.)
2 Ping ipaddress 192.168.1.4 ping running time "20 seconds" ,( msg ping Reply from192.168.1.4 in 7 ms.)
3 Ping ipaddress 192.168.1.4 ping running time "20 seconds" ,( msg ping Reply from192.168.1.4 in 15 ms.)
......
1 Ping hostname pc01ping running time "20 seconds" ,( msg ping Reply from192.168.1.4 in 21 ms.)
2 Ping hostname pc01 ping running time "0.1 seconds" ,( msg ping Reply from192.168.1.4 in 7 ms.)
3 Ping hostname pc01 ping running time "0.1 seconds" ,( msg ping Reply from192.168.1.4 in 15 ms.)
It runs on acer n311 WM5 and hp ipaq 214 wm6 .
There is only one small problem::
1 Ping ipaddress 192.168.1.4 ping running time "20 seconds" ,( msg ping Reply from192.168.1.4 in 21 ms.)
I don't understand the problem. What is "running time", that doesn't come from the library. It works fine on my iPAQ 214 and my HTC Diamond.
function ping
I wanted to use a receive timeout that is listed as being available for both the Compact and full Frameworks and I couldn't understand why it wouldn't work 
Eventually by Googling I found the most stupid comment that I have seen (so far!) from a Microsofty who worked on the socket code 
Linear Mode
