By Kennie Nybo Pontoppidan and Aleksandr Malafeev

A few weeks ago, the Dynamics SMB team finished testing compatibility of Dynamics NAV server with Windows Server 2019. Given that Windows Server 2012 recently went out of mainstream support, we thought it would be useful for our partners and customers to get a few insights into how some of the improvements and features in Windows Server versions 2016 and 2019 can have a positive performance effect on a Dynamics NAV installation.

Before we get started on the nerdy details, the following Dynamics NAV versions are compatible with Windows Server 2016 and 2019:

  • Microsoft Dynamics NAV 2018
  • Microsoft Dynamics NAV 2017
  • Microsoft Dynamics NAV 2016
  • Microsoft Dynamics NAV 2015

For a starter, if you run your NAV installation in a virtualized environment, Windows Server 2016 added a lot of improvements and features to Hyper-V. Since the Dynamics NAV server cannot see if it runs on a virtual machine, we will not go into detail about these improvements. Please visit to learn more.


More important for the Dynamics NAV server, a lot of networking improvements was added to Windows 2016: better TCP performance, and with Internet Information Services (IIS) 10.0 also support for the HTTP/2 protocol. Since all Dynamics NAV clients like to be chatty with the Dynamics NAV server, improvements to the networking stack will have a (positive) performance impact. All versions of the Dynamics NAV server will automatically switch to use HTTP/2 for network traffic if the protocol is available on the operating system.

In Windows Server 2019, the default TCP congestion provider has been changed to give more network throughput, especially on high bandwidth networks with high latency. Windows Server 2019 also provides network performance improvements for virtual workloads and persistent Memory support for Hyper-V virtual machines. The latter is especially interesting if you run the Dynamics NAV database on a SQL Server 2016 SP1 or later and want to utilize tail-of-log optimization for faster database writes (see details here: )


Finally, not related to running a Dynamics NAV installation, Windows Server 2019 come with enhanced Docker experience (for development / test environments). We blogged about this here:



For further information, please visit review the What’s New documents for Windows Server 2016 and 2019 here: