Cropper is still alive and well and has a new release on November 27, 2009. It works great on Windows 7 x64 Ultimate. I use the built-in Snipping Tool, but Cropper is just more friendly to use because it automatically drops captures into a defined folder. When writing articles, books, and blog posts, I can grab my shots and pick them up later. Here is a shot of the MvcContrib GitHub page:
And Here is a shot of the download section on the CodePlex.com project site: