LAN Server automatically maintains special groups that include all user IDs that are assigned any level of access authority. There are three special groups: USERS, ADMINS, and GUESTS. LAN Server places each defined user ID into one of these three groups according to the user's privilege level. Each member of these special groups must have one of the following privilege levels:
Note: No GUEST privileges are provided in DSS.
The APIs in the group category cannot be used to delete users from these groups, nor can these groups be deleted. (Although not automatically created, this is true for members of the group LOCAL, also.) If an application calls any of the group APIs in an attempt to modify one of these special groups or one of its members, the API returns the NERR_SpeGroupOp error code.