Choosing between MEF and MAF (System.AddIn)

Question

The Managed Extensibility Framework (MEF) and Managed AddIn Framework (MAF, aka System.AddIn) seem to accomplish very similar tasks. According to this Stack Overflow questio

Answer 1

I just found this lengthy article discussing both MAF and MEF. http://emcpadden.wordpress.com/2008/12/07/managed-extensibility-framework-and-others/

In addition to the points made by the other answers, it sounds as if one of the key differences between MEF and MAF is that the Managed Extensibility Framework would allow one composable part to depend on another. It would let a plug-in depend upon another plug-in, for example.

The Managed Extensibility Framework also doesn't really make distinctions between the host and the add-in, as the System.AddIn does. As far as MEF is concerned, they're all just composable parts.