XML in Web Browswer

Hoping someone can point me in a direction on the web browser control.  We have started to use the web browser control to retrieve and display document images on our AcuGT screens, the results are promising.  But I have run into something new that I expect someone else has previously dealt with.  In some instances we are receiving XML data streams instead of document images - the XML is simply displayed within the browser control.  What is the easiest way to capture that XML stream so that we can parse it and act upon it?  Any direction would be greatly appreciated.  Thanks