Building an installation MSI package
Source: Fasttrack Software
The option to build MSI files enables the user to build their own installers based on a FastTrack Scripting Host (FSH) script - and more importantly, if the user prefer to deploy their software through group policies or Microsoft System Center, the user can wrap installations that are not in Windows Installer format to make them distributable through these technologies without using unreliable snapshots. Scripts the user compile into MSI files are self-contained, which means that the MSI files the user create do not require FSH to execute. If the user include or start other FSH files from within their compiled MSI script, these will also work without FSH on the executing computer.