The FreeBSD open source operating system[1] provides a powerful set of features to facilitate the deployment, virtualization, and serving of Microsoft Windows environments ranging from small research labs to enterprise deployments. Its exemplary integration with the OpenZFS file system and volume manager, its bhyve hypervisor, and its overall unity play key roles in FreeBSD’s ability to perform these three roles and combined with ported third party software, it can facilitate deployment, virtualization, and serving. This paper will describe each of these facilities with examples of their usage.