[Arreke]

Разобрался, internet+google forever.
Вообщем на форму кидаем компонент ApplicationEvents.

И пишем такой код:

const
FlashPlayerClassName: String = 'MacromediaFlashPlayerActiveX';
WM_WINMENUKEY = $100;
implementation

{$R *.dfm}

procedure TForm1.ApplicationEvents1Message(var Msg: tagMSG; var Handled: Boolean);
var
TempClass: array [0..49] of Char;
begin
With Msg Do Begin
 Case message Of
    WM_RBUTTONDOWN:
    Begin
      GetClassName(hwnd,TempClass,50);
      if  (StrPas(TempClass) = FlashPlayerClassName) then Handled:= True;
    End;  // WM_RBUTTONDOWN
   WM_WINMENUKEY: Handled:= True;
 End; // Case
End; //With

end;