[VB.NET]

When a user's Session expires, I'd like to remove certain things from
the Cache.  For instance, some data items I've stored using the user's
SessionID, so using that, I could remove some of these things from the
Cache...

...if I could get to it.

I know how to iterate the Cache, but the Context object is Nothing
when the Session_End() event fires!  Take a look at my code:

  '-------------------------------------------------------------------------
  '   Session_End()
  '-------------------------------------------------------------------------
  Sub Session_End(ByVal sender As Object, ByVal e As EventArgs)

     Try
        Dim oIEnumerator As IDictionaryEnumerator
        Dim oDictionaryEntry As System.Collections.DictionaryEntry
        Dim sKey As String
        Dim sKeyPrefix As String = Me.Session.SessionID & "."
        'Dim sPrefixes() As String = {Me.Session.SessionID &
".Query.", Me.Session.SessionID & ".QueryPreview"}
        'Dim sSuffixes() As String = {".DataSet", ".DataView"}

        '// EXCEPTION:  Object reference not set to an object
        '// This occurs because Me.Context is Nothing!
        '// How do I get to the Cache from here?
        oIEnumerator = Me.Context.Cache.GetEnumerator

        While (oIEnumerator.MoveNext)

           oDictionaryEntry = CType(oIEnumerator.Current,
System.Collections.DictionaryEntry)

           sKey = oDictionaryEntry.Key.ToString()

           If (sKey.StartsWith(sKeyPrefix)) Then
              Call Context.Cache.Remove(sKey)
           End If

        End While
     Catch oException As System.Exception
        '** Do nothing
        Stop
     End Try

  End Sub

How can I get to the Cache from the Session_End() event and remove
those things I need to remove?

Thanks!