After you modify the virtual directory settings in the Internet Services Manager, the changes are applied but the settings revert to their original values after a short period of time.
Virtual directory settings that affected include Access Control levels such as
read,
write,
script,
directory browsing; Execution permissions such as
none,
scripts only,
scripts and
executables; and Authentication settings such as
anonymous,
basic and
windows integrated.
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This issue occurs because every fifteen minutes, the directory service synchronizes with the metabase. This process overwrites new configuration information in the local metabase with configuration information that was last set in Active Directory by using the Exchange System Manager snap-in.
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To resolve this issue, change the configuration for Exchange 2000 Outlook Web Access (OWA) virtual directories with the Exchange System Manager snap-in.
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For additional information, click the article number below
to view the article in the Microsoft Knowledge Base:
240105 (http://support.microsoft.com/kb/240105/EN-US/) XGEN: General Information on Directory Service/Metabase Synchronization in Exchange 2000 Server
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