（感謝黃世昆老師）兩個 sourceforge 上的計畫吸引了四月份大家的目光：WIX（Windows Installer XML (WiX) toolset）與 Playfair（無效的連結）。前者是微軟工程師 Rob Mensching（他的個人 blog：when setup isn’t just xcopy）四年多自己時間的傑作（這裡是相關的新聞），後者是一套規避 Apple 上面的 DRM 的計畫，引起 DMCA 的注意。
底下引述的是 Rob Mensching 自己的現身說法。請參考。
After four and a half years of part-time development, the WiX design (and most of the code) matured to a point where I was comfortable trying to release it externally. So, last October I started looking for a means to release not only the tools but the source code as well. I thought GotDotNet was the place. However, at that time, none of the existing Shared Source licenses were flexible enough to accept contributions from the community. Then, in February, I was introduced to Stephen Walli who was also working to improve Microsoft’s relationship with the Open Source community. Fortunately, Stephen was much farther along than I and had the step-by-step plan how to release an Open Source project from Microsoft using an approved OSS license.
Today, via WiX on SourceForge, you get to see the results of many people’s efforts to improve Microsoft from the inside out. I’m not exactly sure what is going to happen next but I’m sure there are quite a few people who are interested to see where this leads. Personally, all I hope is that if you find the WiX toolset useful then you’ll join the community and help us improve the toolset."