Downloading new application assemblies

[Bugs]

I'm working on an application that will be extendable with dynamically
loaded assemblies, i.e plugins.

I was thinking of distributing new plugins via FTP or some other
mechanism, maybe even using a web server via HTTP. The main application
would receive some input from the user that they wish to download a new
plugin and the application would then connect to a server and initiate
the download and installation.

Anyone have any high-level recommendations here on methods to retrieve
the plugins?

Thanks!

 

[Bugs]

Does anyone know if MS already has some generic framework or mechanism
defined for achieving this?