Load and Unload Assemblies

You cannot unload individual assemblies or types. Only a complete domain can be unloaded.

https://stackoverflow.com/questions/20230634/unload-assembly-from-app-domain

https://stackoverflow.com/questions/123391/how-to-unload-an-assembly-from-the-primary-appdomain

https://stackoverflow.com/questions/16799227/remove-an-assembly-from-an-application-domain

https://stackoverflow.com/questions/1468151/appdomain-unload-doesnt-release-the-assembly-i-loaded-up-with-reflection

https://stackoverflow.com/questions/425077/how-to-delete-the-pluginassembly-after-appdomain-unloaddomain

https://stackoverflow.com/questions/2132649/loading-unloading-assembly-in-different-appdomain?rq=1

MICROSOFT

https://docs.microsoft.com/en-us/dotnet/framework/app-domains/how-to-unload-an-application-domain

https://docs.microsoft.com/en-us/dotnet/framework/app-domains/application-domains

Best Practices for Assembly Loading

https://docs.microsoft.com/en-us/dotnet/framework/deployment/best-practices-for-assembly-loading

https://stackoverflow.com/questions/658498/how-to-load-an-assembly-to-appdomain-with-all-references-recursively

How to load an assembly at runtime that is located in a folder that is not the bin folder of the application

https://support.microsoft.com/en-us/help/837908/how-to-load-an-assembly-at-runtime-that-is-located-in-a-folder-that-is