From What is a .NET Application Domain?:
You can run several application domains in a single process with the same level of isolation that would exist in separate processes, but without incurring the additional overhead of making cross-process calls or switching between processes.
I would like to understand more about how/why one would actually use multiple AppDomains in their application. Can anyone provide an example with actual code snippets?
Reading the MSDN actually provides some good information.
http://msdn.microsoft.com/en-us/library/system.appdomain.aspx
–Dan