HTML error in VB

Option Explicit On
Imports System.Windows.Forms
Imports System.Windows.Forms.HtmlDocument
Imports System.Windows.Forms.WebBrowser
Imports SHDocVw
Imports System.IO 
 
 
Public Class Form1 

    ' Collections
    Dim m_colFrameSrc As Collection ' temporary frames web pages
    Dim m_colSource As Collection ' collection of source code (Top, Frame1, Frame2, etc)
    '
    ' 
    Private Sub Form_Load() 
        ' Collections {
        m_colFrameSrc = New Collection
        m_colSource = New Collection
        '} 
        ' Load pages {
        Call Me.WebBrowser1.Navigate("http://www4.tripnet.se/~slarti/FrameEx/good1.htm")
        Call Me.WebBrowser2.Navigate("about:blank")
        '} 
    End Sub 
    Private Sub Form_Unload(ByVal Cancel As Integer) 
        Dim lngI As Long 
        For lngI = 1 To m_colSource.Count
            Debug.Print(m_colSource.Item(1))
        Next lngI 

        ' Release {
        m_colFrameSrc = Nothing
        m_colSource = Nothing
        '} 
    End Sub 
    ' When web page complete -> get html code
    Private Sub WebBrowser1_DocumentComplete(ByVal pDisp As Object, ByVal URL As Object) 
        ' Variables {
        Dim lngI As Long
        Dim sFrameSrc As String
        Dim sMainSource As String
        Dim sUrl As String
        '} 

        ' Collection object
        Dim oCollection As Object ' DispHTMLElementCollection
        Dim document As mshtml.HTMLDocument = TryCast(Me.WebBrowser1.Document, mshtml.HTMLDocument)
        ' Init
        sUrl = CStr(URL) 
        ' Found html {
        If (sUrl = "http://www4.tripnet.se/~slarti/FrameEx/good1.htm") Then 
            ' Collections {
            m_colFrameSrc = New Collection
            m_colSource = New Collection
            '} 

            ' Main source {
            sMainSource = Me.WebBrowser1.Document.documentElement.outerHTML
            Call m_colSource.Add(sMainSource, "Top")
            '} 
            ' Easy reading
            oCollection = Me.WebBrowser1.Document.All 
            ' Loopy {
            For lngI = 0 To (oCollection.length - 1) 
                ' FRAME, <source>
                If (oCollection.Item(lngI).nodeName = "FRAME") Then 
                    ' Source NB -> gonna have to look at this more carefully
                    sFrameSrc = "about:blank"
                    sFrameSrc = "http://www4.tripnet.se/~slarti/FrameEx/" & oCollection.Item(lngI).src 
                    ' Add to collection
                    Call m_colFrameSrc.Add(sFrameSrc) 
                End If 
            Next lngI
            '} 
        End If
        '} 

        ' Load Web2
        If (m_colFrameSrc.Count > 0) Then
            Call Me.WebBrowser2.Navigate(m_colFrameSrc.Item(1))
        End If 
        ' Release
        oCollection = Nothing 
    End Sub 
    ' When web page complete -> get html code
    Private Sub WebBrowser2_DocumentComplete(ByVal pDisp As Object, ByVal URL As Object) 
        Dim sSource As String
        Dim sUrl As String 
        ' Init
        sUrl = CStr(URL) 
        If (m_colFrameSrc.Count > 0) Then
            If (sUrl = m_colFrameSrc.Item(1)) Then 
                sSource = Me.WebBrowser2.Document.documentElement.outerHTML
                Call m_colSource.Add(sSource) 
                Call m_colFrameSrc.Remove(1) 
                If (m_colFrameSrc.Count > 0) Then
                    Call Me.WebBrowser2.Navigate(m_colFrameSrc.Item(1))
                End If
            End If
        End If 
    End Sub 

End Class
                                              

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Option Explicit On
Imports System.Windows.Forms
Imports System.Windows.Forms.HtmlDocument
Imports System.Windows.Forms.WebBrowser
Imports SHDocVw
Imports System.IO 
 
 
Public Class Form1 

    ' Collections
    Dim m_colFrameSrc As Collection ' temporary frames web pages
    Dim m_colSource As Collection ' collection of source code (Top, Frame1, Frame2, etc)
    '
    '
    Dim document As mshtml.HTMLDocument = TryCast(Me.WebBrowser1.Document.DomDocument, mshtml.HTMLDocument)
    Private Sub Form_Load() 
        ' Collections {
        m_colFrameSrc = New Collection
        m_colSource = New Collection
        '} 
        ' Load pages {
        Call Me.WebBrowser1.Navigate("http://www4.tripnet.se/~slarti/FrameEx/good1.htm")
        Call Me.WebBrowser2.Navigate("about:blank")
        '} 
    End Sub 
    Private Sub Form_Unload(ByVal Cancel As Integer) 
        Dim lngI As Long 
        For lngI = 1 To m_colSource.Count
            Debug.Print(m_colSource.Item(1))
        Next lngI 

        ' Release {
        m_colFrameSrc = Nothing
        m_colSource = Nothing
        '} 
    End Sub 
    ' When web page complete -> get html code
    Private Sub WebBrowser1_DocumentComplete(ByVal pDisp As Object, ByVal URL As Object) 
        ' Variables {
        Dim lngI As Long
        Dim sFrameSrc As String
        Dim sMainSource As String
        Dim sUrl As String
        '} 

        ' Collection object
        Dim oCollection As Object ' DispHTMLElementCollection
        'Dim document As mshtml.HTMLDocument = TryCast(Me.WebBrowser1.Document, mshtml.HTMLDocument)
        ' Init
        sUrl = CStr(URL) 
        ' Found html {
        If (sUrl = "http://www4.tripnet.se/~slarti/FrameEx/good1.htm") Then 
            ' Collections {
            m_colFrameSrc = New Collection
            m_colSource = New Collection
            '} 

            ' Main source {
            sMainSource = Me.WebBrowser1.Document.DomDocument.outerHTML
            Call m_colSource.Add(sMainSource, "Top")
            '} 
            ' Easy reading
            oCollection = Me.WebBrowser1.Document.All 
            ' Loopy {
            For lngI = 0 To (oCollection.length - 1) 
                ' FRAME, <source>
                If (oCollection.Item(lngI).nodeName = "FRAME") Then 
                    ' Source NB -> gonna have to look at this more carefully
                    sFrameSrc = "about:blank"
                    sFrameSrc = "http://www4.tripnet.se/~slarti/FrameEx/" & oCollection.Item(lngI).src 
                    ' Add to collection
                    Call m_colFrameSrc.Add(sFrameSrc) 
                End If 
            Next lngI
            '} 
        End If
        '} 

        ' Load Web2
        If (m_colFrameSrc.Count > 0) Then
            Call Me.WebBrowser2.Navigate(m_colFrameSrc.Item(1))
        End If 
        ' Release
        oCollection = Nothing 
    End Sub 
    ' When web page complete -> get html code
    Private Sub WebBrowser2_DocumentComplete(ByVal pDisp As Object, ByVal URL As Object) 
        Dim sSource As String
        Dim sUrl As String 
        ' Init
        sUrl = CStr(URL) 
        If (m_colFrameSrc.Count > 0) Then
            If (sUrl = m_colFrameSrc.Item(1)) Then 
                sSource = Me.WebBrowser2.Document.DomDocument.outerHTML
                Call m_colSource.Add(sSource) 
                Call m_colFrameSrc.Remove(1) 
                If (m_colFrameSrc.Count > 0) Then
                    Call Me.WebBrowser2.Navigate(m_colFrameSrc.Item(1))
                End If
            End If
        End If 
    End Sub 

End Class
                                              

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