Legion Development's TFTP Client ActiveX Component allows for drag and drop TFTP functionality in any Visual Studio project. Being RFC1350, 2347, 2348, and 2349 compliant options such as blksize and tsize are allowed along with support for simultaneous transfers.
HsTftpCE is a TFTP application for Pocket PC running Windows Mobile 5 OS. HsTftpCE implements Trivial File Transfer Protocol (TFTP) over UDP socket layer according to RFC 1350 and supports client and server file send and receive operations. HsTftpCE enables user to transfer files between Pocket PC PDA or Smart phone and desktop PC or any other equipment using TFTP protocol over IP network.