WiX, Mercurial, TortoiseHg and the command line.
Bob posted a blog entry how to use TortoiseHg to access the WiX source code on CodePlex. I thought the blog post was great but suffered from one fundamental flaw. It required you to do a whole bunch of mouse clicking. Here’s how to get into the WiX toolset source code using the command-line.
Original post by Rob Mensching