Clear OWA cached credentials from IE

[Gordon Cashmore]

I have an issue with OWA. I don't know if this is an ASP
question or Explorer cache issue, but I will try it here
anyway

I have a machine logged on as a generic user. On an ASP
page I created, I have a link to Outlook Web Access. The
user types their ID and the function is called below.

navigate ("http://chlcl0203/exchange/" + UserID.value)

After clicking on the link, the user is prompted for
userid, password, and domain. They then get in.

After OWA is not needed, a user can hit the back key to
go back to the main Intranet web page.

The problem is, if another user comes up behind the first
and re-enters the first user's ID, and clicks submit, the
cached credentials, from somewhere, are used and the user
goes right into the mailbox. IF WE CLOSE INTERNET
EXPLORER, THE USER IS ASKED FOR ID, PASSWORD, AND DOMAIN
AGAIN.

I have tried clearing passwords, cache, history, offline
folders,everything I could think of, while IE is still
open. It still lets the second user in using the first
users ID.

Any idea where these credentials are cached and how to
delete them without closing IE?

Thanks for any help in advance.
Gordon Cashmore