May 16, 2017—KB4019218 (Preview of Monthly Rollup)

Improvements and fixes

This non-security update includes improvements and fixes that were a part of Monthly Rollup KB4019216(released May 9, 2017) and also includes these new quality improvements as a preview of the next Monthly Rollup update:

• Addressed issue by updating the d3dcompiler_47.dll file to improve application compatibility.

• Addressed issue where the WinRM service and subscriptions stop working and events are dropped when monitoring events and using event forwarding for large deployments.

• Addressed issue where the Server Message Block 3.0’s Continuous Availability feature degrades software performance when the FindFirstFileEx() function receives a path that ends with ".." or ".".

Known issues in this update

Microsoft is not currently aware of any issues with this update.

How to get this update

This is provided as an Optional update on Windows Update. For more information about how to run Windows Update, see How to get an update through Windows Update. To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

• File information
  For a list of the files that are provided in this update, download the file information for update KB4019218.