I'd like to migrate an application build with .Net Framework 4.7.2/Windows Forms/C# to .Net 5. From the documentation, i don't see so much problems to migrate the elements of this application that are written in C#. But this app also uses some DLLs written in Managed/non Managed C++. These DLLs uses some .net framework libraries like mscoree.lib, System.Drawing.dll,... Is it necessary to migrate these DLLs, and how? or do such DLLs can be used without changes in a .Net 5 project?