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XWEB: Mailbox Access via OWA Depends on IIS Token Cache
Article ID: 173658 - View products that this article applies to.
This article was previously published under Q173658
IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.
After you remove the Log on Locally right for a user on a computer running Microsoft Internet Information Server (IIS), the user may still be able to log on to his or her Microsoft Exchange Server mailbox via Microsoft Outlook Web Access. This behavior is temporary and depends on the length of time that user tokens are cached on the server.
For performance reasons, user tokens are cached by IIS and updated at 15- minute intervals. The first time a user logs on via a Web browser, the user's user token is created. If the Log on Locally right is subsequently revoked, the user can still access the mailbox for approximately 15 minutes.
To work around this problem, do one of the following:
For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it.
(http://support.microsoft.com/kb/152526/EN-US/ )Changing the Default Interval for User Tokens in IIS
Article ID: 173658 - Last Review: March 30, 2004 - Revision: 4.0