How to make a triggerbot with the autoit library on vb.net

The truth is that I have searched everywhere and I can not find how to make a functional instruction.

Any ideas?

Dim AU As Autoitlib
Private Sub Shoot_Tick(sender As Object, e As EventArgs) Handles Shoot.Tick
        AU.MouseClick(AU.PixelSearch(158, 54, 158, 54, 14091270))
    End Sub