function WindowsCopyFile(FromFile, ToDir : string) : boolean;
var F : TShFileOpStruct;
begin
  F.Wnd := 0; F.wFunc := FO_COPY;
  FromFile:=FromFile+#0; F.pFrom:=pchar(FromFile);
  ToDir:=ToDir+#0; F.pTo:=pchar(ToDir);
  F.fFlags := FOF_ALLOWUNDO or FOF_NOCONFIRMATION;
  result:=ShFileOperation(F) = 0;
end;