The reason I ask is that I had a Thinkpad A22m with 98SE on it. I did a new installation on it of Win 2k, deleting all that was on it before. Previously this computer had a preloaded recovery software area, I believe they call it a host protected area.
Anyway after 3 attempts to update to SP4 all of which ended badly during the installation part and required re-installation of the OS I gave up on it. Unfortunately I can't remember the error given
But as I say am more concerned as to how vulnerable the system is whthout any of the service packs