What level of i5/OS or OS/400 are you running on
your IBM eServer i5, iSeries, or AS/400 host or hosts? You must be
running i5/OS (V5R4 or later) in order to use Web Express Logon.
Are your Z and I Emulator for Web clients authenticated using Windows Domain?
What are you using as your Key Distribution Center (KDC)?
Are your clients running one or more of the following operating
systems?
Windows 2000 Professional, Server, or Advanced Server
Windows XP Professional
Windows 2003 Server
If not, you will need to upgrade, since other versions of Windows
do not support Kerberos authentication.