If you do not use Workstation Manager and user policies to dynamically create user accounts on terminal servers, you need to create the accounts some other way (for example, manually create static accounts on each terminal server or use Microsoft Active Directory to create them). For information about creating user accounts, see your Windows documentation. As you create user accounts, keep in mind the following:
For passthrough authentication to work for RDP applications, a user’s Windows account must have the same username and password as his or her eDirectory account.
Passthrough authentication does not work for ICA applications; users are always prompted for their login credentials when launching an ICA application. If you want passthrough authentication for ICA applications to work, you must use Workstation Manager and user policies.
The user account must be given adequate file system access to run applications from the terminal server, either through group memberships or individual user permissions.