I actually cut my sysadmin teeth on Windows 2000, and found myself wondering how on earth they could `docker exec` a shell. These were, comparatively, the dark

I actually cut my sysadmin teeth on Windows 2000, and found myself wondering how on earth they could `docker exec` a shell. These were, comparatively, the dark ages of Windows administration, and almost all tasks were done through a GUI. The implementation is nothing short of genius: they use a Windows version of `netcat` (the common UNIX tool, but compiled for Windows from the Windows 2000 Resource Kit), then use `srvany` (also from the Windows 2000 Resource Kit) to start `netcat` as a system service, but with `cmd.exe` piped to its standard in and out. Kudos on this solution!