Windows XP (Home)--Limiting User Account?

Is it possible to place a time limit on a User account in
the Home Version of Windows XP? I have a nephew who is
on the PC more than I would like.

Could this be an added upgrade feature on the next
version or a patch on the current OS version?

I copied this from a previous post from "Taurarian"
<taurarian@hotmailNOSPAM.com>:

Restricting a User's Logon Hours
To restrict a users logon hours use the net user command.
These commands are used from the Command Prompt.
(Start/Run/cmd then press
enter)
Examples:
... net user wayne /time:M-F,08:00-17:00
... net user wayne /time:M-F,8am-5pm
... net user mary /time:M,4am-5pm;T,1pm-3pm;W-F,8:00-17:00
... net user matt /time:all (this one means this user can
always log on)
Note: You can only restrict when a user can log on to the
system. On a stand
alone computer, there is no way, currently, to force a
user to log off when
their hours expire.

>-----Original Message-----
>Is it possible to place a time limit on a User account

in

>the Home Version of Windows XP? I have a nephew who is
>on the PC more than I would like.
>
>Could this be an added upgrade feature on the next
>version or a patch on the current OS version?
>.
>