How to unload the .dll using c#?

Question

I am using .dll reference to my application. i want to unload the .dll in a button click event. How to do it ???

Answer 1

You can't unload an individual assembly - you have to unload a whole AppDomain. In other words, you'll need to load your other assembly (and associated code) in a new AppDomain, then when you want to unload it you unload the AppDomain.

Of course, this makes life a lot harder as you have to worry about marshalling calls between AppDomains - but it's all that .NET allows.