NET-Framework Updates July 30, 2018 with Fixes

Windows Update[German]Microsoft released updates for various Windows and .NET framework versions on July 30, 2018. This is updates are intended fix a couple of collateral damage caused by the previous .NET framework updates.


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German blog reader Frank T. (thanks for the hint) just e-mailed me about Microsoft KB article 4345913 “Access Denied” errors and applications with COM activation fail after installing July 2018 Security and Quality Rollup updates for .NET Framework, which refers to .NET Framework.

Issues with old .NET-Framework Updates

Applications that rely on the .NET Framework to initialize a COM component and run with limited privileges may not start or run correctly after the July 2018 .NET Framework security and quality rollup updates are installed.

After installing one of the July 2018 .NET Framework Security Updates, a COM component cannot be loaded because the errors “access denied”, “class not registered” or “internal failure occurred for unknown reasons” occur. The most common error signature is the following

Exception type: System.UnauthorizedAccessException

Message: Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))

KB4345913 lists the affected applications, started from Sharepoint, to BizTalk Server Administration Console, IS with Classic ASP up to .NET applications.

A list of new Updates

As of July 30, 2018, Microsoft has released the following fixup updates for Windows and.NET Framework.


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  • KB4346877 Update for Windows 10, version 1607 and Windows Server 2016: July 30, 2018
  • KB4346406 Update for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1 and 4.7.2 on Windows 8.1, RT 8.1 and Server 2012 R2 (KB 4346406): July 30, 2018
  • KB4346405 Update for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1 and 4.7.2 on Windows Server 2012 (KB 4346405): July 30, 2018
  • KB4346407 Update for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1 and 4.7.2 on Windows 7 SP1 and Server 2008 R2 SP1 and .NET Framework 4.6 on Server 2008 SP2 (KB 4346407): July 30, 2018
  • KB4346408 Update for .NET Framework 4.5.2 on Windows 8.1, RT 8.1 and Server 2012 R2 (KB 4346408): July 30, 2018
  • KB4346739 Update for .NET Framework 4.5.2 on Windows Server 2012 (KB 4346739): July 30, 2018
  • KB4346410 Update for .NET Framework 4.5.2 on Windows 7 SP1, Server 2008 R2 SP1 and Server 2008 SP2 (KB 4346410): July 30, 2018
  • KB4346745 Update for .NET Framework 3.5 SP1 on Windows 8.1, RT 8.1 and Server 2012 R2 (KB 4346745): July 30, 2018
  • KB4346742 Update for .NET Framework 3.5 SP1 on Windows Server 2012 (KB 4346742): July 30, 2018
  • KB4346744 Update for .NET Framework 3.5.1 on Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB 4346744): July 30, 2018
  • KB4346743 Update for .NET Framework 2.0 SP2 and 3.0 SP2 on Windows Server 2008 SP2 (KB 4346743): July 30, 2018

In the KB article, Microsoft also describes workarounds for the known issues. Details can be found in the KB article or the linked articles from Microsoft.

Addendum: Microsoft released this blog post with additional information about the hat .NET Framework update. It looks like the update is only available in the Microsoft Update Catalog for manual download.


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