since MS is releasing it as open source, BSD license.
As much as I dislike MS's business practices and many of their products, they do have some good people working there. For example, Rob Mensching, who did the Wix MSI install creator, which is open source and hosted at sourceforge. I'm looking at using Wix and add-on (e.g. WixTool), because it looks like it's better than the tools included with Visual Studio.
--Tony