Windows XP comes with a good set of features, many of them might not even be noticed by the users. The On-Screen keyboard is one of them. See the screen-shot below:

I guess some people may find this on-screen keyboard useful. Though I never use it, I just keep that in mind in case some keys on my keyboard go down.
How to find it?

  1. From Desktop, Click on “Start” >> “Run“.
  2. Then type in “osk” and press Enter, then.. there it is!