OpenAFS can be installed either as a new installation or an upgrade from previous versions of either OpenAFS for Windows or IBM AFS for Windows. Installers are provided in two forms:
an executable (.exe) that is built using the Nullsoft Scriptable Installation System, or
a Windows Installer package (.msi) that is built using the open source WiX Toolkit. The MSI can be customized for organizations via the use of MSI Transforms (see MSI Deployment Guide)