(v2.34) WFTPD - Winsock FTP Server.
Allows you to administer an FTP site from
your own Windows machine.  Easy to use and
configure, and notoriously stable.  Costs
only $20 to register either the 16-bit
or the 32-bit version ($5 extra for disk
shipment as opposed to ftp/email delivery -
also, $5 per copy to pay by credit card or
company PO)
Author: Alun Jones, Texas Imperial Software