I see that similar things have been asked before but here goes...

Is there any way to launch the "Change Password" dialog screen from a command line ?

WinXP, 4.91Sp5

We want to avoid the grace login nightmare ("but it said I had 10 grace logins last time I ignored the password change message") by prompting people to change passwords PRIOR to expiry.

The notification email script won't fly - we need pop-ups like a certain alternate product uses...