LiteFTP is a feature-packed FTP server that includes anonymous, shared, group, and superuser access, resume (upload and download), quotas, connection limits, speed per connection limits, advanced access controls, and unlimited accounts. Integrated DynDNS and No-Ip dynamic DNS clients help make LiteWeb a complete and convenient server solution. The administrator is given a precise log of everything that occurs and has the ability to monitor

Easy File Sharing FTP Server
Easy File Sharing FTP Server is a very easy to use FTP Server that allows visitors to download/upload/remove/create files/folders easily through a Web Browser (Internet Explorer, Mozilla) or an FTP Client such as CuteFTP.

Titan FTP Server
Titan FTP Server is a powerful secure multi-threaded FTP Server for Windows. Features secure file transfers using SSL; Virtual Folders; file & directory permissions, disk quotas, UL/DL ratios, bandwidth throttling, local and remote administration.

RaidenFTPD
A full featured & secured ftp server with many advanced functionalities such as SSL , 64-bit addressing , scripting interface and of course , full sets of FTP commands support

GuildFTPd
GuildFTPd has autobanning, an events manager, IRC support, plugin support, virtual file system, passive IP port selection to be used behind routers, buffer size control, remote administration via site commands, and much much more.

Ability FTP Server
Advanced, secure and easy to use FTP Server. Featuring remote admin, security protection options, disk quota limits, bandwidth restrictions, IP restrictions, virtual folders, resume support, real time activity viewer, real time control and much more.