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November 2016 Preview of Quality Rollup for the .NET Framework 3.5.1 on Windows 7 SP1 and Windows Server 2008 R2 SP2 (KB3195789): November 15, 2016

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The November 2016 Preview of Monthly Quality Rollup for Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1 includes cumulative improvements in reliability in the .NET Framework 3.5.1. We recommend that you apply this quality rollup as part of your regular maintenance routines. Before you install this update, see the "Prerequisites" and "Restart requirement" sections.

Quality and reliability improvements

ADO.NET issue resolved

Exceptions may be thrown in SqlClient during the prelogin handshake process or during MARS communication when a received TDS packet size is smaller than expected. Prelogin handshake errors will manifest as an OverflowException, and MARS errors will manifest as a generic "Physical connection is not usable" exception.

Note This update also contains cumulative updates that were released previously starting from October 11, 2016.

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More Information

How to get this update

Method 1:
This update is available from Windows Update, as an Optional update.
Method 2:
To get the stand-alone package for this update, go to the Microsoft Update Catalog website.


To apply this update, you must have the .NET Framework 3.5.1 installed, as appropriate.

Restart requirement

You have to restart the computer after you apply this update if any affected files are being used. We recommend that you close all .NET Framework-based applications before you apply this update.

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Applies to

This article applies to the following operating systems:
  • Windows 7 SP1, when used with the following .NET Framework versions:
    • The .NET Framework 3.5.1
  • Windows Server 2008 R2 SP1, when used with the following .NET Framework versions:
    • The .NET Framework 3.5.1

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Keywords: kb, kbfix, kbsurveynew, kbexpertiseadvanced, kbqfe

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Article Info
Article ID : 3195789
Revision : 3
Created on : 3/10/2020
Published on : 3/11/2020
Exists online : False
Views : 11