这是个文字的超连结 给你参考一下,图片作法相同 
Private Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hWnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long
Private Sub LblLink_Click()
    ShellExecute hWnd, "open", "
http://bbs.mychat.to/index.php", vbNullString, vbNullString, conSwNormal
End Sub
Private Sub LblLink_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
    LblLink.FontBold = True
    LblLink.FontUnderline = True
    LblLink.ForeColor = vbBlue
    Me.MousePointer = 99
End Sub
Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
    LblLink.FontBold = False
    LblLink.FontUnderline = False
    LblLink.ForeColor = vbBlack
    Me.MousePointer = 0
End Sub