This problem got me too.

I tried upgrading Zone Alarm (free) form 7.0.470.00 to 7.0.473.00, but that
did not help.

Using the add/remove programs function of XP, I removed KB951978 and
KB951748, in that order, then normal internet access was possible.

Glad I had a full backup image of C: (via True Acronis Image), since if the
add/remove option failed to fix things, then restoring that image would have
been my next step.

"Ron Hardin" <rhhardin@mindspring.com> wrote in message
news:4873C02D.24E6@mindspring.com...
> Zone Alarm with today's windows update is blocking
> all internet access. What program (something
> new?) to I have to grant access to to restore it?
>
> XP Home SP2.
> --
> rhhardin@mindspring.com
>
> On the internet, nobody knows you're a jerk.