- Microsoft Exchange Server 2016
- Microsoft Exchange Server 2013
- Microsoft Exchange Server 2010
- Microsoft Exchange Server 2007
- Microsoft Exchange Server 2003
- Microsoft Exchange 2000 Server
Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
- Start Registry Editor (Regedt32.exe) on the server that is running IIS and through which the user gains access to Outlook on the Web.
- Locate the following key in the registry:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\InetInfo\Parameters
- On the Edit menu, click Add Value, and then add the following registry value:Value Name: UserTokenTTL (Note This is case-sensitive!)
Data Type: REG_DWORD
Value Range: 0 - 0x7FFFFFFF (Note This unit is in seconds.)
- Exit Registry Editor, and then restart IIS.
For IIS performance reasons, the default setting is 15 minutes. Make sure that you weigh carefully the security implications versus the performance implications. For more information, click the following article number to view the article in the Microsoft Knowledge Base: