But my interest has been piqued:
What is a "slipstreamed disc"?
In Windows there is a way to take your original install disk, and create a new install disk that already includes all of the updated files that you want to put on.
So for example, I may have purchased a windows XP (no service pack) install disk, but could now make a disk that when it installs it is already updated to SP3 and such.
I hope I'm making sense.