Hello
Please note that If the attribute you want to secure is not in the list, you will need to modify the %SystemRoot%\system32\dssec.dat file on the computer running the ACL Editor.
You must edit the dssec.dat file on your workstation, not on the DC. When determining which property permissions to display in a user's ACL account or any other AD object, Win2K looks at the dssec.dat file on the workstation on which you're logged on, not the DC.
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