You can use Visual Studio 2012 RC to download and install samples from the MSDN Code Gallery. You can download only the samples you need, or you can download one or more Sample Packs, which group several samples that relate to a technology or topic.
The new Async feature in the Visual Studio Async CTP (SP1 Refresh) provides an elegantly simple technique to make code asynchronous.
Our writing team uses an internal app that would benefit from asynchronous calls. For each URL contained in the MSDN documentation that we publish,
What is asynchronous programming?
Let’s say you send out an email, then wait and do nothing for the two minutes it takes to get a response back. You do nothing while you’re waiting. It’s worth waiting because it’ll be back fast.