Windows Server version 1709 is only released in the Server Core configuration. There is no Server 1709 version that includes a Desktop UI. In my case this prevented me from installing a legacy Windows Form application I needed for device polling.
I tried Windows Server 2019 preview but it failed Edge's prerequisites validation.
I will wait to try Windows Server 2019 and Azure IoT Edge together when they exit their respective previews, as suggested by the Edge product team.
For now I'm developing and running on Windows 10 Pro N, Version 1709.