Hiding names from GAL exchange 2000

For some reason, I select the "hide from exchange address list" in the exchange advanced options of the user in AD, but the user doesn't disappear from GAL.  Am I doing something wrong?  Is there any other impact if I hide from exchange address lists- Emails will still be routed to recipient?
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What are you clients?
If they are Outlook 2003, or older versions with offline folders, then they will be using the OAB which is only updated every 24 hours by default.
No routing issues, it just stops Outlook from resolving them.


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chitchcockAuthor Commented:
I am using Outlook 2003 and they have cached mode enabled.  I didn't realize there was such a large delay so that is obviously the reason they were not yet removed.  Thanks for the help Simon.  CHUCK
You might want to look at this page on my web site: http://www.amset.info/exchange/oab-error.asp

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