>What I did is something like this in the Click().
>
>This.Enabled=.F.
>ThisForm.MyProcess()
>This.Enabled=.T.
>
>So, what happen is until those 3 lines are not finished, the application interface is not available. So, the This.Enabled=.T. will fire before the click of the mouse is processed by Visual FoxPro.
>
>The problem remains. Any more suggestions?

Hi, Michel! Maybe LockScreen?