I keep this close by because it has saved my behind more than once especially when you can boot into a Windows XP OS from the CD if needed with all the tools to help clear up some very nasty things that may hit you from time to time, in my case how I go about messing around so much trying out new things I tend to crap out my own system.
Link to the full list of utils on dvd: http://www.hiren.info/pages/bootcd
You can also copy over the internals of the .ISO to your HD, and use it directly without booting to the CD if you wish, you just will not be able to boot into the Windows XP option, All other utils can be used.Link to download your copy: http://www.hirensbootcd.org/download/