Thanks for the answers. I wasn't aware of that tool, or the post-SP3 list of updates; that's very useful. However, I have a localized version of XP, and after installing SP3 (using Virtualbox), I noted & downloaded all the updates that Windows update would offer me, which are DIFFERENT than those on the list by -X-! That is, I have some that are not in the list, and the list contains some which Windows update did not download. Note that this is an installation of a Windows XP SP0 CD, having only integrated SP3, and I did it just today (the updates that I have *should* not be obsolete). Plus, when I make a new fresh installation with my post-SP3 CD, I do not get prompted for ANY new updates, so that *should* (again) mean that I have all the latest ones. This is quite a mess