wzdftpd is a ftp server designed to be modular, work under linux/win32, and to be entirely configurable online using SITE commands.
Moreover, wzdftpd is based on a particular philosophy:
free software: wzdftpd is, and will remain free software, meaning you have complete access to the source code, the right to modify it, and the right to redistribute it.
transparency: source code is documented, and available to everyone. The bug-tracker database is also freely accessible, and any bug report will be considered appropriately.
designed for users: any idea/suggestion is welcome, and even if all will not be implemented, they will be taken into consideration.
respect of licenses: all libraries or code fragments used by wzdftpd are used in proper respect to the author's license. Any file/feature/library in contradiction with this idea will be removed.
NOTE: This is a frequently asked question, so it is important to insist on the fact that wzdftpd has NOTHING to do with illegal things ! For those who can't figure it by themselves, wzd is for "wizard" !