If Novell SecureLogin in deployed in a shared workstation where more than one users share the local credentials, users must either use Secure Workstation or DAS to close all programs and log out of the network.
The option is mandated because,
If a user who has logged in to Novell SecureLogin in Novell Client™ mode in Microsoft Windows Vista or Microsoft Windows XP or in LDAP mode (in Microsoft Windows Vista) locks the workstation and later tries to unlock using the workstation credentials, Novell SecureLogin fails to log off the directory user.
However, the directory user is still logged in and Novell SecureLogin continues to run. Because of this, the user who has logged in using workstation credentials has access to the directory credential store.
In such a scenario, avoid using the workstation lock. Instead, use secure workstation or DAS to configure the workstation to close all programs and log out of the network on an inactivity timer.