Entitlement for hotfixes is determined by the contract and that the hotfix is produced within the period that the contract covers. Let's take the example of the commonwealth games first, as that is easier to understand. The patch for the commonwealth games was publicly posted on 3/8/2006, but was produced in Oct. and available to Premier customers who called in and requested it because their TAMs can look at my bug database and see what is coming. It was posted in March because that is when the KB article was written to go along with the patch.
now, if we take a similar approach to E2k, we could have produced an update a while back, but it wouldn't be applicable today, as hotfixes are cummulative and it would be so out of date, that it probably wouldn't work. Also, the new patch is dependant on the dynamic keys in the registry which didn't exist then either. The net/net is that anything that we would have developed when E2k was in mainstream support would not adequatly address this issue.