If MS can make Vista and Win 7 operate effectively, they could also provide a patch for XP!
This is my point. MS doesn’t want to do this because they are a predatory company, trying to force payment for upgrade.
The real story here is the huge number of corporate XP computers that are being targeted by MS!
In my experience, corporate computers are leased for this reason -- to keep maintenance costs under control.
That IS a patch.