Most interesting in FTP Server Tools

Cornerstone MFT Server
Secure Managed File Transfer solution with clustering, auditing and Active Directory support.
1308 FTP-Server
Simple multithreaded FTP-Sever with user group support, virtual paths, access restrictions...
Free
Alex's Ftp Server
A simple ftp server to allow other people to get files from your machine.
Free
FTP Serv-U
FTP Serv-U is a powerful, flexible, and easy to set up FTP server for all MS-Windows platforms.
GuildFTPD
GuildFTPD
0.97
All standard FTP commands also, REST and APPE commands supported (Resume commands...
Free