Nuhi, I apologize sincerely if the wording of my topic relating to the to the toside.sys error I am receiving made it sound as if I were using unlicensed or illegal software. I assure you I am not - I have no need to. As a full time employee for the past nine years of the 2nd largest computer corporation in the US, I am issued legal volume licensing serial numbers for all the Microsoft products our company uses and for our other vendors as well such as Symantec, Novell etc., etc., including the ones I mentioned in my post. In fact, the Win XP SP2 installations I mentioned were from company disks supplied to me by my employer. Although I do download ISOs from the internet due to their easy availability, I do NOT ever use any serial number supplied with the ISO. Once again, I have no need to. In the future, I will be far more careful of my wording, because if my post was worded poorly enough to cause you to misconstrue my meaning, then I know others might also perceive it the same manner and that would reflect poorly on the forum and on me. Thanks for all your hard work - I truly appreciate it. Sincerely, Al