HP CIFS Server 3.0g Administrator's Guide verison A.02.03.01

Figure 3-11 Selecting a new ACE user or group
IMPORTANT: POSIX ACEs with zero permission can be modified by adding an ACE and setting
the desired permissions for that user or group. A new ACE can be added by using the Add button
on the Windows ACL interface.
HP CIFS Server Directory ACLs and Windows 2000/XP Clients 59