Windows Authentication - credentials not expiring

I am using Active Directory to retain login/password info.  I am authenticating users as they enter Sharpoint with a popup Window's authentication.

Users choose to save their passwords.  When users are required to change their password their authentication to Sharepoint fails.  

If password is set back to their old credentials the authentication works properly.  So the credentials are being saved somewhere and not being updated when users change their network password.
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jasonrleeAuthor Commented:
I found half of the solution:

By running the following command:

rundll32.exe keymgr.dll, KRShowKeyMgr

I get a window that shows me saved windows passwords.  This showed me the saved password that wasn't expiring.  But I can't get here without running this command, and it doesn't solve my global problem.

Still when passwords are changed how can I clear this saved password automatically and globally?

The question is still open.
Why aren't you authenticating though the IIS user in AD?  This will then authenticate then through active directory...this is more secure and less administration.
jasonrleeAuthor Commented:
I don't think you undestand the problem.

I am in fact authenticating against active directory.  The problem is the credentials got saved in this Windows Login Password menu.  I have since turned off the ability to save login/password credentials, but everyone in the office still has their old credentials saved in that menu.  Everytime they enter sharepoint they are first authenticated by the old (saved)credentials instead of the immediate ones.
Your right I didn't understand.  But now I think I do.  Were you using basic authentication before? is one KB article that describes adding in activex code to force a re-authentication...

Another link...

Also...this is pretty basic but have you told them to clear there history and cookies for IE?  This wipes out the retained passwords for sites.

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jasonrleeAuthor Commented:
Well your links for activeX seem to be the only answer to my problem.  Since I've never created an ActiveX Control before that will take some time to impliment.  So the points are yours, and I'll repost if I run into problems down the road.  Thanks
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