If your Windows came preinstalled and no XP disk was provided, check the
hard drive for a folder with the Windows setup files in it. Usually the
folder is named i386. "i386" shows up in several places on a normal XP
setup so be sure you have found the right one before expanding a new copy
of wbemoc.inf from it.
This article explains how to extract the file you need from the setup files
to your WinXP folders:
