Tftpd32 is an easy-to-use TFTP server. Tftpd32 supports the TFTP extensions described in RFCs 1782 to 1785. It's possible to change the base directory from the main window. Also, the main window is re-sizable, so you do not have to scroll to read the log window. Tftpd32 can also be set to send data packets without waiting for acknowledgments.