Using Createobject("MsXml2.DomDocument") I can create the following xml file:

<?xml version="1.0" encoding="UTF-16"?>
<settings>
	<node1>
		<field1>data11</field1>
		<field2>data12</field2>
		<field3>data13</field3>
		<subnode1>
			<field1>data111</field1>
			<field2>data112</field2>
			<field3>data113</field3>
		</subnode1>
	</node1>
	<node2>
		<field1>data21</field1>
		<field2>data22</field2>
		<field3>data23</field3>
		<subnode2>
			<field1>data221</field1>
			<field2>data222</field2>
			<field3>data223</field3>
		</subnode2>
	</node2>
</settings>

I don´t have any problems getting and setting the values of each existing element using SelectSingleNode, I have a method to get a value:

GetValue("node2\subnode2\field2", "defaultvalue")

If the node is not found, "defaultvalue" is returned. And to set a value:

SetValue("node2\subnode2\field2", "value")

The problem is that when setting a value, if the node does not exist, I want to add it and then set the value, for example:

SetValue("node2\subnode2\field4", "value")

Should add an element field4 in node2 - subnode2. How do I do that? I am using "\" in the method call, those get replaced by "/" in the method so xpath works.
The whole idea is to add an alternative to my registry class, so settings can be stored in an xml file instead of the registry.

Carlos Alloatti