VBScript to update an xml file

Ok programmers, I know I’ve stumbled across this before and now that I need it I can’t find it. I have a program on my network that uses an XML file for its settings. I would like to just write a script to look in a text file or something of the sort and for each host name update the settings tag.

I know there is a way to connect to an xml file like you would a database but I’m having difficulty finding any information. Can someone point me in the right direction?