[Samba] Can Win Clients change passwords?

[Canobeeens]

Hello list,
             Is there any way for my Windows clients to change their passwords? The samba server is setup as the PDC, and the Win clients do not have any access to the Samba server except through, well ...samba. They cannot ssh to into the box to change their passwords. So is there anyway for the users to do this themselves?

Thanks
Brian