Private Sub Timer1_Timer()
On Error Resume Next
If ProgressBar1.Value < 100 Then
ProgressBar1.Value = ProgressBar1.Value + 2
Else
Timer1.Enabled = False
Timer2.Enabled = True
End If
End Sub

Private Sub Timer2_Timer()
On Error Resume Next
If ProgressBar1.Value > 1 Then
ProgressBar1.Value = ProgressBar1.Value - 2
Else
Timer1.Enabled = True
Timer2.Enabled = False
End If
End Sub