>Yeah ehm I've done that already, these are the (Non-default) property's:
>
>AlwaysOnTop = .T.
>Borderstyle = 0 - No border
>Caption = (None)
>ControlBox = .F.
>Desktop = .T.
>MaxButton = .F.
>MinButton = .F.
>MinHeight = 2
>MinWidth = 2
>Movable = .F.
>ShowWindow = 2 - As Top-Level Form
>TitleBar = 0 - Off
>
>Now how can I be sure my form really stay's on top?

That's usually enough for me, but you probably can use some Win API functions to get what you want.