sbt/sbt-launcher-package — pull request #1 by szeiger (2012-01-17 17:08:54+00:00)
Title: Package Jansi plus a bootstrap launcher in the MSI installer

I know too little about sbt and nothing about wix, so it's probably less than elegant, but it does the trick. You may want to move the launcher source from src/main/java to something like src/windows/java but I have no idea how to get sbt to run the Java compiler as part of the Windows build. Resolving the jansi.jar is just copied from the sbt-launcher.jar. Maybe resolve via Ivy instead (for both?)