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I extracted the files from the installers and none of the files in KB4019276 are found in the IE8 updaters. So cumulative IE8 updates don't update KB4019276. Not a recent February update, it has been available from the Microsoft Update Catalog since at least early November 2017. I compared KB4230450 and KB4316682 and all the files in both installers had the same version number, 8.0.6001.24078. The thing that is different about KB4316682 is that it is described as a "Cumulative Update for Internet Explorer 8" KB4230450 and the vast majority of previous updates for IE8 are described as a "Cumulative Security Update for Internet Explorer 8" If we can take Microsoft at it's word, KB4316682 doesn't have any security updates built into it beyond those in KB4230450, so maybe it's about TLS 1.2 I had KB4316682 installed and KB4230450 wasn't among the updates offered by automatic updates this month. The only thing I haven't tried is to compare KB4316682 to KB4230450 file by file using a hex editor to see if there are any differences.

You have UURollup/KernelEx installed. In vanilla Win2000, there are missing imports:

I can be wrong but (as far as I remember from deleted posts) You need to use /overwriteoem switch while installing kernel updates on one of Your systems.

I finally managed to get also new versions of Basilisk work on windows NT 4.0 with my kernelex, now they work new versions of firefox too (up to 52.0 for now). The first release will be in the fist term of July.