Number of commits made to the project source code each month.
The Windows Installer XML (WiX) is a toolset that builds Windows installation packages from XML source code. The toolset supports a command line environment that developers may integrate into their build processes to build MSI and MSM setup packages.
Inno Setup is a free installer for Windows programs. First introduced in 1997, Inno Setup today rivals and even surpasses many commercial installers in feature set and stability.
Nullsoft Scriptable Install System is a tool for creating quick and user-friendly installers for Microsoft Windows operating systems. It is a script-based system that adds a very small overhead, only 34 KB. It features LZMA compression, support for multiple languages, and an easy-to-use plugins system