I need this assembly `Microsoft.SqlServer.RuntimeWrapper.dll` and it is not in `<drive>:\Windows\Microsoft.NET\assembly`. I have SQL Server 2019 installed (Developer Edition). 
According to this page [link](https://learn.microsoft.com/en-us/sql/integration-services/integration-services-programming-overview?view=sql-server-ver15#locating-assemblies) the assemblies should also be in this folder: `<drive>:\Program Files\Microsoft SQL Server\100\SDK\Assemblies.` But on my computer I do not have the 100 folder. There are 80, 90, 110, 130, 150, Client SDK and MSSQL15.MSSQLSERVER. I think I have checked the relevant boxes when choosing features. 

How can I get hold of `Microsoft.SqlServer.RuntimeWrapper.dll`?

Thanks. 

Edit: On my SQL Server installation the following are installed:
[![enter image description here][1]][1]


  [1]: https://i.sstatic.net/nPSvd.png