This high performance TFTP server runs as a true Windows service and the GUI can be installed separately on the administrator's workstation for remote administration and transfer monitoring. Unique features include: Asynchronous Client Interleaving (ACI), which allows the server to handle thousands of simultaneous client transfers without the overhead of threading. It also means that only a single UDP port is needed for all transfers, making it firewall-friendly. Additional features includes: large file support, no 16/32MB file size limit, on-the-fly access-rules, dynamic root assignment, and file-overwriting rules using expression statements.