Parsing a string in vb.net

Generally i parse a XML String as followed :

The XML String i recieve

<Status>string</Status>
        <RedirectURL>string</RedirectURL>

The way i parse it

Dim sReason As String = "Unknown"

        Try
            xml.LoadXml(sResult)
            If xml.SelectSimpleNode("Status").InnerText = "PURCHASED" Then
                app.Outcome.RedirectURL = xml.SelectSimpleNode("RedirectUrl").InnerText
                AcceptLead()
                Return True
            End If

Now i need to parse a string that is not delivered in XML , but is delivered to me as followed

{"RedirectUrl":"www.test.com","Commission":5.0000,"Status":"accepted"}

How do i do this ?