[quote=snowmonkey]Serv-U pro 6.xx does allow you to set a time limit on user account, according to your selection it would disable or remove the account after a set period of time.
http://www.keray.com/ftpservu.htm
Cheers[/QUOTE
What exactly do you want an FTPserver software, or a Client software? if it is the server one, most offer password time limits, i believe wsFTP server is a good choice with alot of options.
Asfor client software,I'm not exactly sure.