This program has moved:
http://lessmsi.activescott.com/
It's portability is mixed, but mostly portable:
https://github.com/activescott/lessmsi/issues/68
License is standard copyright, with BSD-like allowances for copying, distribution, etc.
lessmsi
Re: LessMSI[rables]
No real changes for v1.6.3...
This is the same as v1.6.2. The only changes are some metadata changes in the chocolatey package that Chocolatey was complaining about.