SlimFTPd - FTP server with advanced virtual file system.
SlimFTPd is a fully multi-threaded standards-compliant FTP server that runs as a system service on Windows 98/ME or Windows NT/2K/XP. Once started, SlimFTPd runs quietly in the background. It reads its configuration from a config file in the same folder as the executable, and it outputs all activity to a log file in the same place. Its virtual file system allows you to mount any local drive or path to any virtual path on the server.