Microsoft still has not put out the documentation for KB4056446

Microsoft still has not put out the documentation for KB4056446.

The link remains “page not found”.

https://support.microsoft.com/en-us/help/4056446

Waiting on Microsoft …

Yeah, only references I can find are “What is this?”. I found one posting, with no real authority, that thinks it’s a Smart Card update of some kind. I’m still looking for the file download to pull it apart, I don’t have WSUS.

Ivanti seems to think it’s a Non-Security Update
https://community.ivanti.com/docs/DOC-65775

It is in the BigFix console here:

405644603 KB4056446 4056446: Update for Windows Server 2008 - Windows Server 2008 SP2 - KB4056446 Patches for Windows
405644601 KB4056446 4056446: Update for Windows Server 2008 - Windows Server 2008 SP2 - KB4056446 (x64) Patches for Window

Download links (respectively):

prefetch windows6.0-kb4056446-x86_aadefbbc199b75883ed300e6cfe93e8b775c5f44.msu sha1:aadefbbc199b75883ed300e6cfe93e8b775c5f44 size:255269 http://download.windowsupdate.com/c/msdownload/update/software/updt/2018/01/windows6.0-kb4056446-x86_aadefbbc199b75883ed300e6cfe93e8b775c5f44.msu sha256:513d3cdf1bcd8670da2690a8bd2c33fe5cc3557aaf2bafeb62279ab0d3a9f91c

prefetch windows6.0-kb4056446-x64_227505e175f65018b7bb5959637a2773cee11966.msu sha1:227505e175f65018b7bb5959637a2773cee11966 size:318587 http://download.windowsupdate.com/c/msdownload/update/software/updt/2018/01/windows6.0-kb4056446-x64_227505e175f65018b7bb5959637a2773cee11966.msu sha256:9c794a4119d8318cadf7cf9b20cdb17472dc4b5adf8706a90b2cf3349ec31ce5

Looks like the previous poster I found is likely correct, looks like it has to do with smart cards.

Extracting the patch files and finding the manifest, looks like it provides

<assemblyIdentity name="Microsoft-Windows-SmartCardSubsystemClient" version="6.0.6002.24262" processorArchitecture="x86" language="neutral" buildType="release" publicKeyToken="31bf3856ad364e35" versionScope="nonSxS" />

  <localization>
    <resources culture="en-US">
      <stringTable>
        <string id="description" value="The Smart Card Subsystem Client." />
        <string id="displayName" value="Smart Card Subsystem Client" />
      </stringTable>
    </resources>
  </localization>
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