Downloads
Windows Installer
Lates version (registration required)
User Forum: Windows Installer v.0.7.0.4.User Group: Windows Installer v.0.7.0.4.
SourceForge.net
Windows Installer v.0.7.0.3.Source code
FlaFi is written in vb.net. You can use Microsoft Express Studio 2010 (free version) if you need to extend existing functionality