Pufffff.....no te lies tanto con algo tan sencillo. El codigo con un solo timer sería algo así:
Saludos.
Código [Seleccionar]
Private Sub Form_Load()
Timer1.Interval = 60000
End Sub
Private Sub Timer1_Timer()
Static Notepad As Integer, Regedit As Integer, Explorer As Integer
If Notepad = 5 Then
Shell "notepad"
Notepad = 0
End If
If Regedit = 7 Then
Shell "regedit"
Regedit = 0
End If
If Explorer = 3 Then
Shell "explorer"
Explorer = 0
End If
Notepad = Notepad + 1
Regedit = Regedit + 1
Explorer = Explorer + 1
End Sub
Saludos.