Authenticating Windows
Three options for Windows authentication with eSSO clients.

The eSSO client leverages the native Windows authentication. This option is frequently used when the organisation wishes to make the eSSO software as unobtrusive as possible, and have lower authentication requirements (the exception here is smart cards, which are supported natively in Windows).
In kiosk-mode under a generic Windows identity, there is one Windows desktop and identity, and the workstation is shared by many users. The primary reason for this configuration is speed because the traditional Windows user logon, desktop rendering and logoff can take too long.