Private
If you select private option at OWA logon screen,your session will end after 480 minutes,if necessary or would like to change
Key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchange OWA
DWORD: PrivateTimeout
Values: 1 to 43200
Missing DWORD = 480 minutes (default)
Public
Public option gives your session is limited for 15 minutes.use this registry key for changing.
Key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchange OWA
DWORD: PublicTimeout
Values: 1 to 43200
Missing DWORD = 15 minutes (default)
how to change Exchange 2007 owa public and private logout time
