Regex issue in vb.net

[linezero]

I'm trying to use this url as regex but it doesnt seems to be working
'sorry of my bad english'

Full code:

Dim request As System.Net.HttpWebRequest = System.Net.HttpWebRequest.Create("http://localhost/pos/leftpanel.html")
        Dim response As System.Net.HttpWebResponse = request.GetResponse

        Dim sr As System.IO.StreamReader = New System.IO.StreamReader(response.GetResponseStream())

        Dim rssourcecode As String = sr.ReadToEnd

Dim r As New System.Text.RegularExpressions.Regex("http://localhost/booksmodule/ListContent.php?case=.*&funcfor=.*&funcmod=.*&catid=LM3334443&refid=.*&ccshowid=.*")


Dim matches As MatchCollection = r.Matches(rssourcecode)


        For Each itemcode As Match In matches

            ListBox1.Items.Add(itemcode)

        Next

I have added .* on where i want to find matches

here is the actual url

http://localhost/booksmodule/ListContent.php?case=normal&funcfor=author&funcmod=information&catid=LM3334443&refid=22333&ccshowid=553332