http://www.insanelymac.com/forum/topic/309654-run-vanilla-os-x-el-capitan-sierra-yosemite-or-mavericks-in-virtualbox-5010-on-a-windows-host/

I just got this working again tonight. Now on my server I am running a macOS VM that will let me install macOS Server and allow some finer controls over my devices. The big thing I am excited for is creating a unified HTPC image using netboot. It’s my early IT days all over again!