When I left Microsoft, I felt pretty sad. Not only would I leave a bunch of great friends behind (and REALLY good benefits) - I was leaving my beloved Toolbox behind! (Toolbox is an internal site that has TONS of tools and apps written by Microsoft employees) So, imagine my intense happiness when some of my favorite tools finally surfaced for public consumption!

Microsoft Source Analysis for C# - This was called StyleCop inside the walls of Microsoft. What is it? It's a source-code analysis tool that you can use to ensure that everybody in your org is adhering to your coding guidelines. It can be a bit (ok, VERY) pedantic sometimes, but you can dial down the level of nitpick.

Deployment Tools Foundation - At MSFT, whenever I needed to do something in managed code during setup, I'd reach for this great internal tool for creating managed custom actions. It worked fairly well, even if it did hit many of the issues Rob Mensching had enumerated for why WiX had no roadmap for managed custom actions a year or so ago. Well, Jason's a smart fellow, and he addressed those issues in the latest version, which has become DTF.

Lastly, Bob Arnson has released a great WiX extension for creating exceptions in Windows Firewall by adding a couple of new elements to your WiX code.