[SOLVED] What is the Microsoft.VisualStudio.Platform.WindowManagement.dll and where can I get the official ones from Microsoft?

What is the Microsoft.VisualStudio.Platform.WindowManagement.dll and where can I get the official ones from Microsoft?

I am looking for access to some functions in the DLL I mentioned above. I am not aware of any Nuget package that provides this DLLs. So my question is, where do I get the latest version of this .dll from MS, and are they compatible with plugins targeting VS2019 and later?

Solution

Thanks for the answers, I am new to stack-overflow and probably didn't explain myself better. I am developing a Visual Studio Plugin which closes some Document Windows in VS. I found some repos of VS plugins on Github which has a reference to this .DLL, and they use it to close all clones of Document Windows by casting the IVsWindowFrame to WindowFrame class belonging to this DLL.

As pointed out in comments: I found the DLL in my C: drive under this path: C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\Common7\IDE