> At the point in the For Next loop where objCustNode.nodeName is equal
> to "Tag3", I want to know what's it's FULL path is, ie,
> "//Tag1/Tag2/Tag3".

If you want absolute path, you want to start with /, not //

It's fairly trivial to implement a non-namespace-aware version of this, 
walking up the node's ancestors and building up the path. Note that at 
each level you need to count the number of preceeding instances of nodes 
with the same type and name, since what you really want is more like
	/Tag1[1]/Tag2[4]/Tag3[2]

Properly supporting namespaces, unfortunately, is uglier, since the 
normal XPath syntax requires that the namespace bindings be given as 
prefixes but provides no syntax for declaring those prefixes. The ugly 
workaround is to generate something more like
	/child::*[localname()="Tag1" and namespace()="http://whatever"][1]
for each step.

An XSLT implementation of the non-namespace-aware version appeared in my 
DeveloperWorks article on using stylesheets to debug other stylesheets. 
It shouldn't be hard to implement it in any other language, and 
off-the-shelf implementations probably do exist though I've had no 
reason to go looking for one recently. I don't use VB so I can't give 
you any specific advice for that environment.



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