SELA Group was having a live broadcast on the SDP conference content, if you happens to be at Israel at between the 13-16.3 and considering to attend the conference, the on demand recording can help you to choose which session best suit you . the SDP agenda site: http://www.sela.co.il/s/sdp/_new/practice2011.html my talk about the Parallel tutorial day and MEF session: http://scc.sela.co.il/scc/pages/showlecture/showlecture.aspx?lectureid=487 .
Dynamic MEF isn't thread safe by nature this post focus a pitfall which you should be aware in order to avoid sporadic crashes. In general most of MEF operation are operate once at the application initialization stage, and it normally happens on a single thread. this may not be true when you need to dynamically load MEF parts (using GetExportedValue or SatisfyImportsOnce ). unfortunately MEF underline is using non concurrent dictionary which is not thread safe for the above operation...