VB-APP html parser/ converting text to html

[raids51]

i have an application that needs to parse html files...right now i can get the file off the internet using a webclient and getdata... but the page returns as text... and i cant figure out how to convert that text into a html document. any help would be great...thanks in advance. heres the code:

Public Function GetPageHTML(ByVal URL As String) As String
        Dim objWC As New System.Net.WebClient()
        Return New System.Text.UTF8Encoding().GetString(objWC.DownloadData(URL))

    End Function

    Private Sub crawl(ByVal url As String)
        Dim page As HtmlDocument = GetPageHTML(url)

    End Sub
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        crawl("http://www.nexopia.com")
    End Sub