Thanks to both of you. I will follow the instruction to remove all trace of ZA properly.
Reason I removed it in safe mode was that Windows wasn't loading anymore, I had to boot from my Gold Xp Cd.
And it was the Free ZA which I had just updated that caused Windows to go down the drain, see I had problems
and more problems wiht computer, that is when I noticed that my Avast licence was past due, and kept updating to the same stuff, instead of a real update.
But earlier that same day. I had updated ZA free too, so when I installed Avast free they told me to disable don't remember
one of the shield, as there was an issue with ZA, and they were working on it.
Told myself well I don't since I've been running both no problem, so I didn't block that shield from installing, THAT is exaclty when I lost Windows, boy I was a happy trooper.
I have full ZA pro CD, but for a reason I can't understand, it simply doesn't work properly or there is another conflict with another program, and it cause that infamous DR Watson to go up the walls, and freeze my computer constantly, so I removed it using the add/remove from the control Panel, and went back to the good old ZA free. But since now Avast was up and running, no more ZA, it simply wouldn't install.
ZA said it was caused by XP, and not by their product.
Oh well since I was tired of being the ping pong ball in that match, I took my own decisions.
So back to the drawing board, will try to get ZA installed then install Avast, and see what goes on.