Base types, Collections, Diagnostics, IO, RegEx…
This post discusses features in the preview version of MEF, and some details may change between now and the full release.
The MEF team has been quietly at work for some time getting the finishing touches on another developer preview. You can download the new source and .NET 4.0-compatible binaries from the Codeplex site.
Useful resources for porting existing .NET code to Metro style apps.
Memory mapped files are a powerful technique for random file access and inter-process communication, but like all powerful techniques they come with some quirks. One subtle nuance is that the size of a memory mapped file is always expanded up to the next virtual memory page boundary. This means that developers must track the difference between the useful memory contents containing data, and junk bytes that fill the space up to the next virtual memory page boundary.