How to properly unload an AppDomain using C#?

Question

I have an application that loads external assemblies which I have no control over (similar to a plugin model where other people create and develop assemblies that are used b

Answer 1

Try to make GC.Collect() if you do not unload the domain.

 try
    {
       AppDomain.Unload(otherAssemblyDomain);
    }
    catch (CannotUnloadAppDomainException)
    {
       GC.Collect();
       AppDomain.Unload(otherAssemblyDomain);
    }