>Hi Everybody !
>
>How can I enforce just one instance of a modeless form ?
>
>Thank you

Hi Antonio,

You'd do this sort of thing with your forms manager code. Simply check to see if the form is already running (via checking the _SCREEN's Forms collection). If the form already exists, simply call its Activate method.

In the case of an SDI application, you might want to look at my article that appeared in last November's FoxPro Advisor on creating single instance applications.