According to $HELP SET SECURITY /DELE you can remove any and
all ACL, including protected ones with:
$set secu /acl/del=all
I've tested this with
$SET FILE/STAT x.x
$SET PROC/PRI=SECU
$DIR/ACL x.x
$set secu /acl/del=all
$DIR/ACL x.x
Hope this helps,
Using EDIT/ACL, the following magic incantation will allow the deletion
and/or modification of hidden and/or protected ACEs:
press ^D
at the command prompt:
TPU Command: acledit$c_check_modify:=0;
See ACL editor source code in SYS$UPDATE:ACLEDIT.TPU. You could
modify it to make a special editor which has this as the default.
Note - this is probably unsupported.