network connection

hello!
this is the scenario,
i have 3 computers the other one is the server, how would the server know if the 2 computers are not connected to it?

tnx

Where does c sharp come into this? Are you using tcp ip or some similar protocol? Please explain further.

Ping them.

Good client/server implementation can tell when any client connect/disconnect (by a simple callback)...

i already found sample code,
does anybody know hot use the .com or vb active x in c#.net?

tnx

Wanna share your sample code with us?

Check codeproject.com , i think there are couple of client/server articles in C#...much better when you use pure .NET code.

jennifer babe...
what sample? about network connection?
it is written in VB6... that's why i decided to use VB6 not .net
but if there is a sample code written in c#.net maybe i will pursue it in .net,
do you want the code... pls confirm

Sure why not. I love sample code that works lol. I could add it to my collection!

Only if its c# i guess. this might be the wrong forum to post vb code, but at the same time I'm not familiar with the forum rules so I could be wrong.

Jennifer.

jennibabe,
it is written in vb6

Ok. But just to clear things up. What does the code do? does it use tcp ip or udp ??

it uses API, it actually do as PING command does.