this mean i must know how to send the data of this arduino through ethernet.
Isyourspacekeybroken? If not, use it between sentences!
There are two ways to get the Arduino to send data when wearing an ethernet shield. It can be a server, responding to GET requests, or it can be a client, making GET requests. There are examples in the Ethernet folder of each role.
Your VB app must be the server, if the Arduino is the client, or must be the client if the Arduino is the server.
Which role is each to play?