URGENT - can't remove permissions for Guests

Michael__Dailous_(KyoceraAdmin_(Delete)_2288173)

I can't update the ACL to remove the permission set for the Guests group (RIGHT_WORLD). I am trying to remove all permissions for this ACL on specified objects. I'm using the following code to accomplish this:if (documents.GetObjectInfo(0, objID, objInfo) == 0) { volumeID = objInfo.toInteger("VolumeID"); if (documents.SetObjectRight(volumeID, objID, RIGHT_DELETE, RIGHT_WORLD, PERM_SEE|PERM_SEECONTENTS, 0) != 0) { throw new Exception("Can't update " + objID); }}I've also tried using RIGHT_REPLACE with a permission set of 0, which doesn't work either.Any help would be greatly appreciated.TIAMichael