How do I cahnge passwords on a server from the Command Line

I am trying to change a password on a server, from a client pc, using the command line. I originally found the net use command using the syntax, net user username * /domain. I want to use this command, or something similar, but I want to use it so that I can have users change their passwords on a server, using their client pcs. Normally I would just have the users press cntrl+alt+delete, but these users are the biggest idiots i have ever talked to. Anyone know of a way that I can do this command line, net user username * \\server, because that would be my dream. Thanks