changing FTP password

I'm developing and application that automatically logs into a FTP server. The server requires that I change the password every 90 days. I haven't been able to find a way to do this using the WinInet library. Can any one help?

Hi.

Which do you want to know?

1) Server program change the client password every 90 days?
2) Client program will change the password if server asks to do it?

Regards.
-Masaaki Onishi-

I would like to know how the client program can change the password if server asks to do it and also how to change with out any prompting from the server.

Thanks,

Cindy