additive Attribute
Applies To: Windows Server 2008
The additive attribute is a Boolean value. If true, the existing subkeys are not deleted, and the values set in the list box are appended to the existing subkeys. If false, the existing subkeys are deleted and the values in the list box replace the existing subkeys.
Syntax
additive="<true|false>"
where
true represents append new values in the list box to the existing subkeys, and
false represents only apply the new values from the list box.
Examples
This XML fragment example specifies a list element that appends the existing subkeys to the ones that would be specified through the list box associated with this list element.
<list id="Sample_ListBox_SingleColumn_Param"
key="Software\Policies\Examples\listbox1"
additive="true" />