FormLabs PreForm (3D printer driver and software)
Little bit of a niche request here :)
FormLabs is a 3D printer company. Their printers use their software, PreForm, to install drivers and create, modify, and print 3d renderings. The software is updated very frequently (usually few times a month) and my users want to be on the latest versions. The installer is freely available here: https://formlabs.com/tools/preform/
Note: the installer uncompresses into a handful of .exe and msi packages- seems relatively easy to put together. Bonjour is included in the installer and I believe it is required for network/cloud printing and the cloud print management console the newer models support. I could be wrong, but we weren't able to print a few years ago when I disabled the Bonjour installer. The print management console lets our users check the progress of long jobs from home (many jobs take 8-24 hours).