Article ID: 970445 - View products that this article applies to.
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When you try to browse OWA on SBS 2008, you may receive the following error message:
Outlook Web Access did not initialize. An event has been logged so that the system administrator can resolve the issue. Please contact technical support for your organization.
Failed to remove unnecessary privileges, GetLastError()=5
User host address: 192.168.0.2
Exception type: Microsoft.Exchange.Clients.Owa.Core.OwaWin32Exception
Exception message: Failed to remove unnecessary privileges, GetLastError()=5
This issue may occur if the 'Physical Path Credentials' attribute on the Advanced Settings of OWA virtual directory is using a specific user account. This means only that specific user account has access to the physical path for the OWA virtual directory.
You should always use the 'Application User (pass-through authentication)'. With this option, IIS uses the credentials of the requesting user to access the physical path.
If you look in the Application Logs, you would see the following errors are recorded.
Log Name : Application
Source : MSExchange OWA
Event ID : 58
Description : Outlook Web Access could not load and is now restarting.
Log Name : Application
Source : MSExchange Common
Event ID : 579
Description : Removal of privileges from process
"c:\windows\system32\inetsrv\w3wp.exe" (PID=7368, LABEL=MSExchangeOWAAppPool)
failed with error code 0x80070005.
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