Hello! Thank you very much to Grinler and this site for saving me time and money by posting on the System Fix Virus. The link to those instructions: http://www.bleepingcomputer.com/virus-removal/remove-system-fix
This is the first time I have been to this site. I am very grateful and felt compelled to make an addition to the instructions of a work-around I stumbled upon while try to fix my Windows XP that was not mentioned in the instructions. If it can help someone else, then I've done my part.
The problem I was having was I couldn't see anything so just getting started with these instructions wasn't working. Couldn't use Internet Explorer, couldn't see My Computer, etc. All files were hidden. Since I am a novice, I decided to try safe mode because I had seen other articles talking about starting in safe mode. When I started in safe mode, I was able to use an administrator account (that I didn't even know existed) to see a thumb drive that I had put all of the programs you would need to use to remove this cr*p I had dl'ed from my good computer. I was able to go through the entire process and it seemed to work, but when I restarted without safe mode, the virus was still there and my files were still hidden (some had returned but all files were empty).
Since I found that random administrator account in safe mode, I hit the start button and right clicked to open up all user accounts. I had done this before to view my son's account to see if the virus had hit there and noticed it took a couple of minutes to take hold, but back to the point... I created a new administrator account aptly named "virus". Before the virus took over the account, I uploaded the "IExplorer" named version of "IKill" and ran it. It worked!!! From there, the rest of the instructions worked flawlessly.
Just felt I should share.