FileXare
A simple program to transfer files between two computers
... computers, just enter the IP or the address of the remote computer and click "Connect". In the remote computer, click the "Connect" button but leaving the address text box empty. Note that the port 1121 must be open in the remote computer.
When the two computers are connected, click the "Send files" button or drag and drop files to the program window to send them to the remote computer. The file transfer can be stopped at any time and resumed later automatically by sending the same file again.