Получение адресной строки

uses windows, ddeman, ......

function Get_URL(Servicio: string): String;
var
Cliente_DDE: TDDEClientConv;
temp:PChar; //<<-------------------------This is new
begin
Result := '';
Cliente_DDE:= TDDEClientConv.Create( nil );
with Cliente_DDE do
begin
SetLink( Servicio,'WWW_GetWindowInfo');
temp := RequestData('0xFFFFFFFF');
Result := StrPas(temp);
StrDispose(temp);
CloseLink;
end;
Cliente_DDE.Free;
end;

procedure TForm1.Button1Click(Sender);
begin
showmessage(Get_URL('Netscape'));
или
showmessage(Get_URL('IExplore'));
end;