<ns1:Password>hunter2</ns1:Password>

is the node in question, and it is only one line. The SOAP message was merely an example of a time where using regex to change the value of a single node in an XDoc is not pretty.

Of course. But the soap was multiple lines :3

The rest of it was to give context. It isn't like his XML doc is just <Node>Value</Node>. There is more to it.

Regex is for parsing regular languages (http://en.wikipedia.org/wiki/Regular_language). XML is not a regular language. Using the right tool for the job makes life a lot easier than hacking something together that works sometimes.