zFTPServer is a small and easy to use FTP server with a lot of interesting and usefull features:

• Virtual filesystem: Possible to mount any disk drive or directories at anywhere within the home directory of a user or group.
• Automatic updates: The server will update automatically when a new version is available (optional).
• Remote administration: The server and graphical user interface is separated which easily enables remote maintenance of the server.
• Being a system service: Built in WindowsNT / 2000 / XP / 2003 service support.
• Ultrafast transfer speed: More than 11MByte/sec. average on 100MBit LAN, outperformes most of the "famous" windows ftp servers.
• Passive mode host / IP option: Ability to specify a host name for a server with dynamic ip adress to use in passive mode, e.g. myserver.no-ip.com
• Powerful user and group account management: Users and Groups may join multiple number of groups simultaneously.
• Support for upload balancing: With the virtual filesystem users' uploads may end up where there is space.
• Advanced IP-Access management: Access rights with respect to ip adresses or domain names may be specified, granting or denying access from specific locations.
• Advanced Account expiration: Accounts can be expired after a specific criteria has been fullfilled. Criterias include expiration after a specific date, after a specified number of days/weeks/months has passed, number of downloads performed and more.
• Multiple language interface: zFTPServer Suite is currently available in English, Swedish, Italian, Traditional Chinese, Portuguese, Slovak, Hungarian and German.
• It's FREE!