Control Panel>Administrative Tools>Computer Management>Local Users and
Groups>Users
Find the user in question and right-click on his name then left-click on
Properties. You will see where you can check the box that says "User
cannot
change password". Also check the box for "Password never expires".
If for some reason you don't see this option, you may need to do the
following:
Control Panel>Folder Options>View tab - uncheck "Use Simple File Sharing".
This will give you the ability to set fine-grained permissions since Media
Center is a superset of XP Pro.
(I always have my XP Pro boxen set with Simple File Sharing disabled so
I'm
not sure whether the advanced user settings are available with it on or
not, so I'm giving you the extra information just in case.)
Malke