http://codetechnic.blogspot.com/2009/02/receiving-large-files-over-tcpip-in-c.html

Check the bottom link on page for Client Code script.

transferring for small files:
http://socketprogramming.blogspot.com/2007/11/file-transfer-using-c-socket.html

Receiving Large Files / small files over TCP/IP in C#  socket programming.
c# windows app. transferring data between systems using tcp through socket programming.

Receiving Large Files over TCP/IP in C#

C#