webkit.net

How can I load an HTML string into Webkit.net so I can access its "DOM"

I'd like to use Webkit.net to load an (X)HTML string and then analyze the DOM in order to "compress" it (remove whitespace, newlines, convert <input></input> and <input /> to <input> (basically an XHTML to HTML conversion, doctype allowing). Is there anyway to do get the "DOM tree" in webkit.net? If not, are there any .net HTML parsers ...