Show Baloon Tip every hour

[FastEddie]

I am trying to show a balloon tip every hour that my form is minimized to the tray. I allready have the minimize part done but how do I set the timer once it is down and then show the message every hour. I have some code I pulled from MSDN but I am not sure how to apply it to my situation. Also I have the timer set to 10 seconds here so that I can see the balloon tip for testing.

Private Sub SetTimer()
        Dim aTimer As New System.Timers.Timer()
        AddHandler aTimer.Elapsed, AddressOf OnTimedEvent
        aTimer.Interval = 10000
        aTimer.Enabled = True
        GC.KeepAlive(aTimer)
    End Sub
    Private Sub OnTimedEvent(ByVal source As Object, ByVal e As ElapsedEventArgs)
        ShowCSABaloon()
    End Sub

Also will this timer have a noticable effect on performance?