That Winzip site is another $30 addon program or 21 day eval. Most of us are runnig on MS XP. I am running MS XP and, until now, have had no problem unzipping files and installing without addon programs like RAR or Winzip. Your MTH program is AWESOME, to be sure. If neccessary, I would puchase a download addon like RAR or Winzip to use it, but I don't think that is what you intend. Will you be releasing MTHv2 where an addon program for downloading and installing MTHv2 will not be required?