Boxstarter
Boxstarter provides Rrpeatable, reboot resilient windows environment installations made easy using Chocolatey packages. When its time to repave either bare metal or virtualized instances, locally or on a remote machine, Boxstarter can automate both trivial and highly complex installations. Compatible with all Windows versions from Windows 7/2008 R2 forward.
RequestReduce
RequestReduce - On the fly Javascript and CSS merging, minification, and Sprite Generation Module
nQuant
.net 8 bit PNG Color Quantizer
Chocolatey
Windows application package manager (core contributor)