TCP client/Server application question

[Sid Price]

I have a VB.NET 2005 client and server applications using TCP/IP; the
applications are working as expected with the server accepting a client
connection and creating a thread to handle communications with the client.
However when the client application closes the thread on the server side
never becomes aware of this, I was expecting an exception to be thrown in
that thread that I could then use to close the thread down.
On the client side I have the following code to close the connection
(mClient is tcpClient object and mListenerThread is a handing communications
from the server):
If mClient Is Nothing = False Then

Dim oStream As NetworkStream = mClient.GetStream()

oStream.Close()

mClient.Close()

End If

If mListenerThread Is Nothing = False Then

mListenerThread.Abort()

mListenerThread.Join()

End If

I have searched for an answer but closing both the NetworkStream and the
tcpClient was the only solution I found and it is not working for me.

Any suggestions please?

Sid.